Important to detect outliers in data set, Z-score (3 std dev from mean) and IQR methods are commonly used, choosing right method and threshold crucial for accurate data analysis.
it is more than 3 standard deviations away from the mean. This method is known as the Z-score method or the standard deviation method for detecting outliers. It provides a way to quantify how far away a data point is from the mean in terms of standard deviations. However, it is important to note that the 3 standard deviation threshold is just a general guideline and may not always be appropriate. Other methods, such as the interquartile range (IQR) method, can also be used to detect outliers in a data set.
It's essential to detect outliers as they can greatly impact the analysis and interpretation of data, so choosing the appropriate method and threshold for identifying outliers is crucial.
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after much experimentation, john discovers a which says that the wavelengths of light absorbed by hydrogen gas fit into a pattern which he is able to express in a mathematical formula.
After much testing, John comes up with a "law" that states that the light wavelengths absorbed as hydrogen gas follow a pattern that can be expressed mathematically.
Explain about the wavelengths of light for hydrogen gas?When hydrogen gas is placed in the discharge tube as well as the light released on the passing electrical discharges at low pressure is inspected using a spectroscope.
The emission spectrum or line spectrum for hydrogen is formed. It is discovered to be made up of numerous lines divided into various series.Four wavelengths with in visible spectrum of hydrogen light—410 nm, 434 nm, 486 nm, then 656 nm—are associated with photon emissions by excited electrons transitioning towards the quantum level denoted by the primary quantum number n = 2.Thus, John comes up with a "law" that states that the light wavelengths absorbed as hydrogen gas follow a pattern that can be expressed mathematically.
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The correct question is-
after much experimentation, john discovers a _____ which says that the wavelengths of light absorbed by hydrogen gas fit into a pattern which he is able to express in a mathematical formula.
How many kilometers per hour is this? Km/h
The speed of a car is 0.61 kilometer per hour.
What is the speed?The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.
From the figure, time =1.68 minutes and distance =17 meter
Now, in kilometer per hour is
Here, speed = Distance/Time
= 17 meter/1.68 minute
= 0.017 km/0.028 hours
= 0.017/0.028
= 0.61 kilometer per hour
Therefore, the speed is 0.61 kilometer per hour.
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Graph 3x-4y=8 2-48-3=y
The graph of the given equation are attached below.
What is graph?A graph contains data of which input maps to which output.
Analysis of this leads to the relations which were used to make it.
For example, if the graph of a function is rising upwards after a certain value of x, then the function must be having increasingly output for inputs greater than that value of x.
If we know that the function crosses x axis at some point, then for polynomial functions, we have those as roots of the polynomial.
We are given the equation as;
3x - 4y = 8
3=y
From 3x – 4y = 8
⇒ -4y = -3x + 8
y = (3/4x) + -2
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arulfo deposited 55 into a savings account according to the rulw of 72 what interest rate will cause his money to double in approximately 23 years
The 3.13% interest rate will cause his money to double in approximately 23 years.
What is compound interest?The interest that is calculated using both the principal and the interest that has accrued during the previous period is called compound interest. It differs from simple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest. Compound interest is commonly abbreviated C.I. in mathematics.
Given that Arnulfo deposited $55 into a savings account for which interest is compounded semiannually.
According to the rule of 72, we should divide 72 by the interest rate to determine how many years it will take to double our money at a specific interest rate (r).
time is taken to double the money = 72/r,
where r represents the interest rate and time is in years.
As we have been given that it will take approximately 23 years to double Arnulfo's money, so we can set an equation as:
23 = 72/r
r = 72/23
r = 3.13
Hence the interest rate is 3.13%.
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The complete question is,
Arnulfo deposited $55 into a savings account for which interest is compounded semiannually. according to the rule of 72, what interest rate will cause his money to double in approximately 23 years?
in this lab, you declare and initialize variables in a c program. the program, which is saved in a file named newage.cpp, calculates your age in the year 2050.
The program calculates the user's age in 2050 by declaring and initializing three integer variables (myNewAge, myCurrentAge, and currentYear) and using them in an expression to determine the user's age in 2050.
Here is the C++ code that implements the instructions:
#include <iostream>
int main() {
int myCurrentAge = 29;
int currentYear = 2023;
int myNewAge = myCurrentAge + (2050 - currentYear);
std::cout << "My Current Age is " << myCurrentAge << ". ";
std::cout << "I will be " << myNewAge << " in 2050." << std::endl;
return 0;
}
The program first declares and initializes two variables, myCurrentAge and currentYear, with the user's current age and the current year, respectively. The third variable, myNewAge, is then calculated by adding the difference between 2050 and the current year to the user's current age. Finally, the program outputs the result using the cout statement.
This question is incomplete and should be written as:
Summary In this lab, you declare and initialize variables in a C++ program. The program, which is saved in a file named NewAge.cpp, calculates your age in the year 2050. Instructions Declare an integer variable named myNewAge. Declare and initialize an integer variable named myCurrentAge. Initialize this variable with your current age. Declare and initialize an integer variable named currentYear. Initialize this variable with the value of the current year. Use four digits for the year. Execute the program by clicking the Run button at the bottom of the screen. Sample program execution: My Current Age is 29. I will be 65 in 2050.Learn more about code to execute here: brainly.com/question/26134656
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Write a word problem for 3(2x)=6x
Multiply a number by 2 and then find the product of the number obtained with 3 is the statement required
What is an Algebraic Expression?An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations (addition, subtraction, etc.). Expressions are made up of terms.
Given here: The equation 3(2x)=6x
Clearly here the associative property of multiplication is used above
First, a number x is multiplied by 2
Then the number obtained above i.e 2x is multiplied again by 3
Thus the word problem can be of the form
Multiply a number by 2 and then find the product of the number obtained with 3
Hence, Multiply a number by 2 and then find the product of the number obtained with 3 is the statement required
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Garrett bought 4 pounds of red apples and g pounds of green apples. Choose the expression that shows how many pounds of apples Garrett bought in all.
An expression that shows the total pounds of apples Garrett bought in all include the following: D. 4 + g.
How to write an equation to model this situation?In order to write an equation that model this situation, we would assign a variable to the total pounds of green apples and the total pounds of red apples respectively, and then translate the word problem into algebraic equation as follows:
Let the variable r represent the total pounds of red apples.Let the variable g represent the total pounds of green apples.Since Garrett bought 4 pounds of red apples and g pounds of green apples, an equation that models the total pounds of apples that he bought is given by:
Total pounds of apples = r + g
Total pounds of apples = 4 + g
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Pam wants to put a banner across her garage door, as shown below, to congratulate her son for his college graduation. The garage door is 12 feet high and 16 feet wide. How long should the banner be to fit the garage door? A house is shown with a banner over the garage door. The garage door is marked 16 ft wide and 12 ft high.
The banner should be 56 feet long to fit the garage door.
What is the perimeter of rectangle?The perimeter of a rectangle is the total length of all the sides of the rectangle.
P = 2 (L + B)
P = perimeter of rectangle, L = Length of rectangle, B = Breadth of rectangle
Given length of garage door = 12 feet
Given breadth of garage door = 16 feet
P = 2 (L + B)
P = 2 ( 12 + 16)
P = 2 (28)
P = 56 feet
Hence, The total length of the banner should be 56 feet to cover the entire door.
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The souvenir shop at the ballpark sells signed baseballs for $2 each and
signed miniature bats for $6 each. Jay can spend at most $12 to buy no more than 4
items. Create a system of inequalities to model this situation, and then graph the
solution set. Which solution results in Jay spending all his money to buy 4 items?
The solution results in Jay spending all his money to buy 4 items is (3, 1)
How to determine teh system of inequalitiesFrom the question, we have the following parameters that can be used in our computation:
Signed baseballs = x
Signed miniature bats = y
Using the above as a guide, we have the following:
2x + 6y <= 12
x + y <= 4
Next, we graph the system (see attachment)
The solution results in Jay spending all his money to buy 4 items is (3, 1)
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Alice wants to bake 9 cakes for a party. Alice needs 1/3 cups of sugar for each cake. How much sugar will she need for the 9 cakes?
Answer:
Step-by-step explanation:
Answer:
8 2/3
Step-by-step explanation:
Since she has 1/3 already, we need more. So here, we SUBRACT.
Subtract 9 with 1/3.
You'll get 8 2/3
5. Increasing the alpha level (for example from a = .01 to a = .05)_____a. Increases the probability of a Type I errorb. Increases the size of the critical regionc. Increases the probability that the sample will fall into the critical regiond. All of the above
The probability of a Type I error, increases the size of the critical region, and increases the probability that the sample will fall into the critical region.
The alpha level (or significance level) is a probability value used to determine the level of statistical significance of a test. Increasing the alpha level from a = .01 to a = .05 means that the probability of a Type I error (also known as a false positive) increases. This is because the critical region, or range of values that represents a statistically significant result, increases in size.
The critical region is calculated by subtracting the alpha level from 1, then subtracting the result from the alpha level. For a = .01, the critical region is calculated by 1 - .01 = .99, and then .99 - .01 = .98. For a = .05, the critical region is calculated by 1 - .05 = .95, and then .95 - .05 = .90.
The increase in the critical region size means that there is an increased probability that the sample will fall into the critical region, and yield a statistically significant result. This is because the critical region has become larger, meaning that there is a greater chance that the sample will lie within it. In summary, increasing the alpha level from a = .01 to a = .05 increases the probability of a Type I error, increases the size of the critical region, and increases the probability that the sample will fall into the critical region.
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f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.
Answer:f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.
f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.
Step-by-step explanation:f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.
f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.f(0) = sin (0), g(0) = cos (0). Find the exact value of the function g(0) if 0 = 45°.
a grain silo is in the shape of a cylindrical prism. the silo is 90ft in diameter and 275ft in height. using the standard acceleration of gravity as , find the total weight exerted to the floor of the silo. additionally, of grain weighs 49lbs
The total weight exerted on the floor of the silo is 138,973,475 lbs
The volume of the cylindrical silo is given by the formula:
V = πr^2h
where r is the radius, h is the height and π (Pi) is approximately 3.14.
First, find the radius:
r = D/2 = 90ft / 2 = 45ft
Next, find the volume:
V = π * 45^2 * 275 = 31,875 * 3.14 * 275 = 2836275 cubic feet
Finally, calculate the weight of the grain:
W = V * w_grain/ft^3 = 2836275 * 49lbs/ft^3 = 138,973,475 lbs
This is the total weight exerted on the floor of the silo.
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given a standard deck of cards find the probability of randomly drawingan ace of hearts from the deck
Answer:
Since there are 54 cards in a standard deck, and only 1 ace of hearts:
You would have 1/54 of a chance of drawing the ace of hearts.
You would also have 1.85% of a chance drawing the ace of hearts.
Step-by-step explanation:
Hope it helps! =D
a) b) c) d) By how much is 78 greater than-12? By how much is -23 less than 23? What must be added to -6 to give 105? What must be added to 15 to give -30?
Drag each number tile to the box with the matching expression.
3
1
2
3
1
3
3
1
4
3
1
6
3
2
3
12
1
2
−
9
1
4
5
3
4
−
2
5
12
The first box is satisfied by 3 1/4
The second box is satisfied by 3 1/3
What is a fraction?
A fraction is a mathematical expression that represents a part of a whole or a ratio of two numbers. It consists of two parts: the numerator and the denominator.
The numerator represents the number of parts being considered, and the denominator represents the total number of parts in the whole. If we work on the boxes that we can see in the question then we end up with the values as shown above.
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one kilogram is 2.2 pounds what is the kilogram per pound
Here we have a relation to perform changes of units, we will see that:
1 pound = 0.455 kilograms
How many kilograms are in one pound?We know that one kilogram is 2.2 pounds, and we want find what is the "kilogram per pound".
We can write the relation:
1 kilogram = 2.2 pounds
To get the "kilogram per pound" we need to have a "1" on the right side, so we can divide both sides by 2.2, then we will get:
(1 kg)/2.2 = (2.2 lb)/2.2
0.455 kg = 1lb
This means that one pound is equalto 0.455 kilograms.
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Id like to order 5 halves of a cupcake for my family plus some extra for my 2 friends. They'll each like a quarter of a cupcake
The total number of cupcakes needed will be 3 cupcakes.
How to calculate the fractionA fraction simply means a piece of a whole. In this situation, the number is represented as a quotient such that the numerator and denominator are split. In this situation, in a simple fraction, the numerator as well as the denominator are both integers.
Since you 5 halves of a cupcake for my family plus some extra for my 2 friends, the total number of cupcakes needed will be:
= 5 ( 1 /2) + 2 ( 1 / 4)
= 2 1/2 + 1/2
= 3
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Complete question
Id like to order 5 halves of a cupcake for my family plus some extra for my 2 friends. They'll each like a quarter of a cupcake. What is the total cupcakes needed?
The difference between the measures of two complementary angles is 88°. determine the measures of the two angles ?
The measures of the two complementary angles are 44° and 132°.
Given that the difference between the measures of two complementary angles of any given triangle is 88°, it means that one angle is 88° smaller than the other. To find the measures of the two angles, divide the sum of the difference by 2. That is given as, (88°/2) = 44°. One angle is given as 44°, and the other angle is equal to the sum of the two angles in a triangle, which is 180°, minus the first angle, which is 44°, which is equal to 136°.
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Which methods will determine 70% of 42?
A: Determine 1% of 42, and multiply the result by 7
B: Determine 10% of 42, and multiply the result bv 7.
C: Determine 10% of 42, and multiply the result by 70
D: Determine 10% of 42, and multiply the result by 70.
An envelope is 4.7 inches wide, and it measures 7.4 inches along the diagonal. How tall is the envelope? If necessary, round to the nearest tenth.
Answer:The envelope is approximately 6.3 inches tall.
Step-by-step explanation:
lim(x→1)〖(2x2+x−1)/(2x−1)
list a process variable value for each of the 4 process variables, and explain the meaning of the application. (eg. 5gpm flow - would fill a 5 gallon bucket up in 1 minute)
The four process variables are temperature, pressure, flow, and level. The temperature is given in degrees Celsius, the pressure is given in bars, the flow rate is given in gallons per minute, and the level is given in centimeters.
1. Temperature - 70°C: This is the temperature of a given system, likely referring to the temperature of a liquid or gas.
2. Pressure - 4 bar: This is the pressure of a given system, likely referring to the pressure of a liquid or gas.
3. Flow - 5 gpm: This is the flow rate of a given system, likely referring to the flow rate of a liquid or gas. It would fill a 5 gallon bucket up in 1 minute.
4. Level - 10 cm: This is the level of a given system, likely referring to the level of a liquid or gas in a container. It is equivalent to 10 cm, or 4 inches.
The four process variables are temperature, pressure, flow, and level. The temperature is given in degrees Celsius, the pressure is given in bars, the flow rate is given in gallons per minute, and the level is given in centimeters. These variables all refer to the properties of a given system, such as that of a liquid or gas.
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About how many millimeters long is the missing side of the right triangle, to the nearest tenth?
5 mm
7 mm
Using Pythagoras theorem, The missing side of the right triangle is 4,9 mm long.
The Pythagoras Theorem is what?Pythagoras' Theorem states that the square of the hypotenuse side in a right-angled triangle is equal to the sum of the squares of the other two sides. The Perpendicular, Base, and Hypotenuse are the names of the three sides of this triangle. The hypotenuse in this example is the longest side because it is located across from the 90° angle. A right triangle's positive integer sides (let's say sides a, b, and c) are squared to produce a Pythagorean triple equation.
Right triangles are what the provided triangle is.
The Pythagorean Theorem is used:
[tex]a^{2} + b^{2} = c^{2}[/tex]
[tex](5)^{2} + (7)^{2} = c^{2}[/tex]
25 + 49 =[tex]c^{2}[/tex]
c = 4.9
Hence, the missing side of the right triangle is 4,9 mm long.
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What is the value of x?
Enter your answer in the box.
Answer:
84
Step-by-step explanation:
540 is the sum of angle of a pentagon.
we get the equation,
X + 110 +131 +108 + 107 = 540
X = 540 - 456
X = 84
A number is multiplied by 6 and then 4 is added. The result is 34. Find the number
Answer:
5
Step-by-step explanation:
subtract: 34-4=30.
divide: 30/6=5
Based on the given values, the unknown number is 5.
How to find the unknown numberLet's use algebra to solve the problem.
Let's call the unknown number "x".
We know that when this number is multiplied by 6 and 4 is added, the result is 34:
6x + 4 = 34
Solve for x by isolating it on one side of the equation.
First, simplify the left side of the equation by subtracting 4 from both sides:
6x = 30
Then, solve for x by dividing both sides by 6:
x = 5
Therefore, the unknown number is 5.
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A container can hold 40 litres of milk and container can hold 60 litres of milk . What is the maximum capacity of a jar that can be used to measure the milk of both containers ?
The capacity of the two containers can be measured with a jar with a maximum capacity of 20 litres.
How to determine the maximum capacity of a jar that can be used to measure two milk jars
In this problem we find the case of two containers with different capacity, one with a capacity of 40 litres and other with a capacity of 60 litres, we can measure each of them based on the number of adds needed to fill each container. The number of adds (n) is equal to the container capacity (C), in litres, divided by the jar capacity (c), in litres:
n = C / c
If we assume that the number of adds is a natural numbers, then we determine the greatest common factor of both container capacities. First, decompose each number related to each container:
40 = 2³ × 5
60 = 2² × 3 × 5
Second, find the common factors and create the resulting product:
G.C.F. = 2² × 5
G.C.F. = 20
A jar with a maximum capacity of 20 litres can be used to measure the capacity of both containers.
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Find a matrix P such that PTAP orthogonally diagonalizes A. Verify that PTAP gives the proper diagonal form. (Enter each matrix in the form [[row 1], [row 2], ...], where each row is a comma-separated list.) าง่า 7 1 (P, PTAP) =
We can find a matrix P such that PTAP orthogonally diagonalizes A, and the diagonal entries of PTAP are the eigenvalues of A, verifying that the diagonal form of A is correct.
We can orthogonally diagonalize a matrix A by finding a matrix P such that PTAP is orthogonal. An orthogonal matrix is a matrix whose columns are orthogonal unit vectors. This means that the dot product of any two columns is 0.
Let's calculate the matrix P to orthogonally diagonalize A. We will use the Gram-Schmidt process to calculate the orthonormal vectors for the columns of P.
Let v1 = (7,1) be the first column vector of A. We will use this vector to calculate the first column of P. We normalize v1 and get an orthonormal vector u1 = (7/sqrt(50), 1/sqrt(50)). We set the first column of P to be u1.
For the second column, we take the second column vector of A and subtract its projection on u1. This gives us a new vector v2 = (7, -6). We normalize v2 and get an orthonormal vector u2 = (7/sqrt(73), -6/sqrt(73)). We set the second column of P to be u2.
Now, we have the matrix P = [[7/sqrt(50), 7/sqrt(73)], [1/sqrt(50), -6/sqrt(73)]]. We can verify that the dot product of the columns of P is 0, which shows that P is an orthogonal matrix.
We can now calculate the product PTAP. We get PTAP = [[7^2/50+7^2/73, 7*7/50-6*7/73], [7*7/50-6*7/73, 7^2/50+6^2/73]]. We can see from this matrix that the diagonal entries are equal to the eigenvalues of A, which were 7 and 1. This shows that PTAP is a diagonal matrix which orthogonally diagonalizes A.
We can find a matrix P such that PTAP orthogonally diagonalizes A, and the diagonal entries of PTAP are the eigenvalues of A, verifying that the diagonal form of A is correct.
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Which best represents the equation of the line below?
1 y = -1 x + 2
Answer:
Solution to the question of figure : c
Step-by-step explanation:
Match each quadratic function given in factored form
The equivalent form of the given polynomials are A) (x+1) (x-12) B) (x+2) (x-6) C)(x+4) (x-3) D) ( x+2) (x+4)
What are quadratic equations?A quadratic equation can be written in the standard form as ax2 + bx + c = 0, where a, b, c are constants and x is the variable. The values of x that satisfy the equation are called solutions of the equation, and a quadratic equation has at most two solutions.
Given here: The quadratic equations as
1)
[tex]x^2-11x-12\\x^2-12x+x-12\\x(x-12)+(x-12)\\(x+1)(x-12)[/tex]
2)
[tex]x^2-4x-12\\x^2-6x+2x-12\\x(x-6)+2(x-6)\\(x+2) (x-6)[/tex]
3)
[tex]x^2+x-12\\x^2+4x-3x-12\\x(x+4)-3(x+4)\\(x+4) (x-3)[/tex]
4)
[tex]x^2-x-12\\x^2-4x+3x-12\\x(x-4)+2(x-4)\\(x+2) (x+4)[/tex]
Thus the factorization of the polynomials given are given above.
Hence, The factorization of the given polynomials yields the following results.
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Answer:
f(x) =(x+2) (x-6) B
f(x) =(x-4) (x+3) D
f(x) =(x-12) (x+1) A
f(x) =(x-3) (x+4) C
Step-by-step explanation:
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