In a class of 25 students, 24 of them took an exam in class and 1 student took a make-up exam the following day. The professor graded the first batch of 24 exams and found an average score of 74 points with a standard deviation of 8.9 points. The student who took the make-up the following day scored 64 points on the exam.1. Does the new student's score increase or decrease the average score? ? Increase Decrease2. What is the new average? Answer to four decimal places.3. Does the new student's score increase or decrease the standard deviation of the scores? ? Increase Decrease

Answers

Answer 1

Since the new score is below the current average score, it sure decreases the average score.

What is the probability of a score falling above or below the mean?Regardless of what a normal distribution looks like or how big or small the standard deviation is, approximately 68 percent of the observations (or 68 percent of the area under the curve) will always fall within two standard deviations (one above and one below) of the meanOne approach is the percentile rank. The percentile rank of a score is the percentage of scores in the distribution that are lower than that score. Percentiles are useful for comparing values.Soft inquiries such as viewing your own credit report will not affect your FICO Score. Hard inquiries such as actively applying for a new credit card or mortgage will affect your score

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Related Questions

Eric's freezer has a volume of 20,000 cubic inches. He freezes 30 cartons of strawberries in the freezer. Each carton is 10 inches long, 4 inches wide, and 5 inches high.

What is the volume of one carton of strawberries?

Enter your answer in the box.
in³
Check Answer
Question 2
What is the volume of all of the cartons of strawberries?

Enter your answer in the box.
in³

Answers

The volume of one carton of strawberries is 200 in³.

The volume of all of the cartons of strawberries is 6,000 in³.

What is the volume?

The volume of each carton can be determined by multiplying the length, width and height together.

Volume = length x width x height

10 x 4 x 5 = 200 in³

The volume of all the boxes of strawberries can be determined by multiplying the number of cartons by the volume of one carton.

Volume of the 30 cartons of strawberries = 200 in³ x 30 = 6,000 in³

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Please answer the question in this picture I need help!! 50 points!

Answers

The answer to this question is 8 m

16. diagonal the perimeter of a rectangle is 32 feet. the length is three times as long as the width. find the length of the diagonal. round to the nearest tenth.

Answers

The length of the diagonal is 12.6 feet.

"Information available from the question"

The perimeter of a rectangle is 32 feet.

The length is three times as long as the width.

We have to find the length of the diagonal.

Let w = width

then

3w = length.

Because we know the perimeter:

Perimeter of the rectangle is : 2(l + w)

32 = 2(w + 3w)

32 = 2(4w)

16 = 4w

4 feet = w (width)

Length:

3w = 3(4) = 12 feet

Diagonal, we use the Pythagorean theorem:

Let d = diagonal

then,

[tex]d^2 = 4^2 + 12^2[/tex]

[tex]d^2[/tex] = 16 + 144

[tex]d^2[/tex] = 160

d = 12.6 feet

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HELP DUE IN 20 MINNNNNN WILL GIVE CORRECT ANSWER BRAINLIEST

Answers

The simplified expression for this problem is given as follows:

9 - 13j/7.

How to simplify the expression?

The expression for this problem is defined as follows:

16 + (-4) - 5j/7 - 6j/7 + 7.

The plus sign means that the sign is maintained, hence:

16 + (-4) - 5j/7 - 6j/7 + 7 = 12 - 5j/7 - 6j/7 + 7.

Then we combine the like terms, as follows:

12 + 7 = 9.-5j/7 - 6j/7 = -13j/7.

Hence the simplified expression is given as follows:

9 - 13j/7.

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an arithmetic sequence $2,5,8, 11, 14,\ldots$ is written in order in a book, one hundred numbers per page, beginning on page one. on which page will the number $11{,}111$ appear?

Answers

An arithmetic sequence is a sequence of numbers where the difference between any two consecutive terms is always the same. In this case, the common difference is 3, so every term is 3 more than the previous term.

The [tex]$n^{th}$[/tex] term in the arithmetic sequence can be found using

[tex]$a_n = a_1 + (n - 1)d$[/tex]

where $a_1$ is the first term (2 in this case), $d$ is the common difference (3 in this case), and $n$ is the term number.

To find the page number that $11{,}111$ appears on, we need to find the term number that corresponds to this value:

[tex]$11{,}111 = 2 + (n - 1) \cdot 3$[/tex]

Solving for $n$, we have:

$11{,}109 = 3n - 1$

$3n = 11{,}110$

$n = 37{,}037$

Since each page contains 100 numbers, the number 11,111 appears on page $\left\lceil \frac{37{,}037}{100} \right\rceil = 371$.

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PLEASE HELP!!!

For the figure below, what is the total sum degrees of the interior angles? Use the correct formula and show all work!

Answers

Answer: 900

Step-by-step explanation:

The Interior Angle formula is (n-2)x180. So you take 7 minus 2 times 180 and that gives you 900

Elena wants to create a scale drawing of her bedroom. Her bedroom is a rectangle with length 5 m and width 3 m. She decides on a scale of 1 to 50.

Draw and label the dimensions of a scale drawing of Elena’s bedroom, using
a scale of 1 to 50.

Answers

To create a scale illustration of her bedroom, Elena must draw a 10cm by 6cm rectangle.

How to draw a scale illustration of the bedroom?

To create a scale illustration of her bedroom she must take into account the scale she will be using. In this case it would be 1:50, that is, each original unit must be divided into 50 parts. Therefore, we must divide the lengths into 50 as shown below. Additionally we must take the values in cm.

500cm / 50 = 10cm300cm / 50 = 6cm

According to the above, a scale model would be 10cm by 6cm.

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at a seaport, the depth of the water during the day can be found using the equation where is the depth of water in feet and is the number of hours after midnight. at 8:30pm what will be the water's height?

Answers

The water's height at 8:30 PM is approximately 0.69 feet.

As per the data given in the question,

We have the equation,

depth = 4 * sin (0.5 * t)

where t is the number of hours after midnight.

As we need to find the depth of the water at 8:30 PM,

For finding the value of the depth at 8:30 PM we need to first convert 8:30 PM to the number of hours after midnight.

8:30 PM = 20.5 hours after midnight

So, substituting t = 20.5 into the equation,

we will get it as:

depth = 4 * sin (0.5 * 20.5)

depth = 4 * sin (10.25)

depth = 4 * 0.1736481776669303

depth = 0.6945971520676809

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60 suitcase marked down 20%

Answers

1.20×60=12001200/100=12

12suitcase

Richard and Teo have a combined age of 27. Richard is 3 years older than twice Teo's age. How old are Richard and Teo?

Answers

Answer:  Richard is 22 and Teo is 9

Step-by-step explanation:

The formula for the area of a triangle is , where b is the base and h is the height. rearrange the formula to solve for the height (h).

Answers

The formula to solve for the height of a given triangle is =h=2A/b

 

Given the area of a triangle formula = A=1/2×b×h

where , A=area of the triangle.

b=base of the triangle.

h=height of the triangle.

To find the height of the triangle using this formula=

A=1/2×b×h

2A=b×h

h=2A/b

thus,h=2A/b is the formula to solve for the height of a given triangle.

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Solve the following system of equations graphically on the set of axes below.
y= \frac{1}{6}x+7
y=
6
1

x+7
y= -2x-6
y=−2x−6
Plot two lines by clicking the graph.
Click a line to delete it.

Answers

The system of equations graphically on the set of axes is given below.

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 8 is an equation.

We have,

y = (1/6)x + 7

y = -2x - 6

The graph of each equation is given below.

The point of intersection is (-6, 6).

i.e,

(1/6)x + 7 = -2x - 6

(1/6)x + 2x = -6 - 7

13x/6 = -13

x/6 = -1

x = -6

So,

y = -2x - 6

y = -2 x -6 - 6

y = 12 - 6

y = 6

Thus,

The system of equations graphically is given above.

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What is

−5f + 6 > 10f − 10

Please answer!

Answers

The solution to the given inequality  [tex]-5f + 6 > 10f - 10[/tex] is [tex]f < 16/15[/tex].

What is inequality?

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

The inequality is given in the question, as follows:

[tex]-5f + 6 > 10f - 10[/tex]

To solve the inequality [tex]-5f + 6 > 10f - 10[/tex], we need to isolate the variable [tex]f[/tex] on one side of the inequality.

We will first subtract 6 from both sides to isolate the [tex]-5f[/tex] term:

[tex]-5f + 6 - 6 > 10f - 10 - 6[/tex]

Simplifying the left side:

[tex]-5f > 10f - 16[/tex]

Next, we will subtract [tex]4f[/tex] from both sides to isolate the [tex]-5f[/tex] term on the left side:

[tex]-5f - 10f > 10f - 10f - 16\\-15f > -16[/tex]

Finally, we will divide both sides by -9,

[tex]-( 15 f )/9 > -16/15[/tex]

Dividing both sides by -15:

[tex]f < 16/15[/tex]

This is the required solution to the given inequality.

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Priya and Han plan a fundraiser for the running club. They begin with a balance of -80 because of expenses. In the first hour of the fundraiser they collect equal donations from 9 parents, which brings their balance to -44 .

How much did each parent give?

Answers

Answer: 4

Step-by-step explanation:

(-88) - (-44) = -36

remove the (-) = 36

36 ÷ 9 = 4

I don’t Understand this question

Answers

According to this information, investments with 4.2, 1.3 and 2.8 interest have a profit of more than $100. On the other hand, investments with interest of 0.75 and 5.2 have a profit of less than $100.

How to calculate the profit of these investments?

To calculate the profit of these investments we must carry out the following procedure:

1. We must divide the interest in 100

2. We must multiply the interest by the total value of the investment ($1500).

3. We must multiply the result by the number of years of the investment.

4. We must classify the result as less than or greater than $100.

According to the above, investments with 4.2, 1.3 and 2.8 interest have a profit of more than $100. On the other hand, investments with interest of 0.75 and 5.2 have a profit of less than $100.

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3(4w+2)+13 this was for hw and i need to get my grade up pls help

Answers

Answer:

12w+19

Step-by-step explanation:

[tex]3(4w + 2) + 13[/tex]

You multiply everything in the brackets with 3

[tex]3(4w) + 3(2) + 13[/tex]

[tex]12w + 6 + 13[/tex]

combine the like terms

[tex]12w + 19[/tex]

Directions: Based on the information given in the following problem, compute the gross pay.

Regular salary: $984 per month

Overtime rate: $10.39 per hour (14 hours overtime to be paid)

Round your answers to two decimal places.

gross pay: $

Answers

The gross pay of the worker when using the given parameters is; $1,129.46

How to calculate the Gross Pay?

Gross pay is defined as the total amount of money you get before taxes or any other deductions are subtracted from your salary.

Net pay is defined as the amount of pay remaining for issuance to an employee after deductions have been taken from individual's gross pay.

Thus;

Gross pay = Net pay + deductions

Net pay = Gross pay - deductions

The parameters are;

Regular salary: $984 per month

Overtime rate: $10.39 per hour (14 hours overtime to be paid)

Gross Pay = 984 + 14(10.39)

Gross Pay = $1,129.46

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a graph titled residuals versus launch angle has launch angle (degrees) on the x-axis, and residual on the y-axis. points decrease, and then curve up. based on the residual plot shown, is a linear model appropriate for using launch angle to predict height? a linear model is appropriate because the residual plot is curved. a linear model is appropriate because many of the residuals are close to zero. a linear model is not appropriate because the residual plot shows a clear pattern. a linear model is not appropriate because the y-intercept of the regression equation is negative.

Answers

In a residual plot, the residuals are plotted against the predictor variable. Ideally, the residuals should be randomly scattered around zero, without any patterns or trends.

If there is a pattern, it suggests that the linear model is not an adequate representation of the data and a more complex model may be necessary.

In this case, the residual scatter plot shows that the residuals are randomly scattered around zero, which suggests that a linear model is appropriate for summarizing the relationship between the predictor and response variables. This means that a straight line can be used to approximate the relationship and make predictions based on the data.

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A cone has a volume of 1024π cubic inches. If the radius is 16 feet, what is the height of the cone?

Answers

The height of the cone is 0.083 inches

How to determine the height of the cone?

From the question, we have the following parameters that can be used in our computation:

Volume = 1024π cubic inches

Radius = 16 feet

Convert the radius to inches

So, we have the following representation

Radius = 192 inches

The volume of a cone is

Volume = 1/3πr^2h

Substitute the known values in the above equation, so, we have the following representation

1/3πr^2h =  1024π

So, we have

r^2h =  3072

This gives

h = 3072/(192^2)

Evaluate

h = 0.083

Hence, the heightt is 0.083 inches

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determine whether the first is a subset of the second, the second is a subset of the first, or neither is a subset of the other. a. the set of people who were born in the u.s., the set of people who are u.s. citizens. b. the set of students studying a programming language, the set of students studying java. c. the set of animals living in the ocean, the set of fish.

Answers

Given the following subset phrases are neither is a subset of the other. A set whose elements are all members of another set is simply referred to as a subset.

Because U.S. citizenship can also be acquired through other means, the group of people born in the country is a subset of the group of people who are citizens of the country. The group of Java learners all belong to the group of learners of a programming language, so Because Java is simply one of the many distinct kinds of programming languages, the group of students studying Java is a subset of the group of students studying a programming language. Since fish are just one of the many different marine species that dwell in the ocean, fish are a subset of the animals that live in the ocean.

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an election is coming up between four candidates. in your opinion, candidate a is half as likely to win as candidate c. candidate b is twice as likely to win as candidate d. candidate d is three times more likely than c. for the candidate most likely to win the election, what is the probability that they are going to win?

Answers

The probability that candidate B is going to win the election is 2.

The probability of candidate A winning the election is 0.5, the probability of candidate B winning the election is 2, the probability of candidate C winning the election is 1/3 and the probability of candidate D winning the election is 2/3.

Therefore, the candidate most likely to win the election is candidate B, and the probability that they are going to win is 2. This can be calculated using the formula for probability, which states that the probability of an event occurring is the number of favourable outcomes divided by the total number of outcomes. In this case, the number of favourable outcomes is 1 and the total number of outcomes is 3, so the probability of candidate B winning is 1/3.

Therefore, the probability that candidate B is going to win the election is 2.

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Simplify the expression (6^4)2.

Answers

The answer to your question is 2,592

Please help I don't know how to do it

Answers

The value of x is obtained as follows:

128º.

The measure of angle A is given as follows:

m < A = 132º.

How to obtain the measures?

For a parallelogram, the opposite angles are congruent, meaning that they have the same measure, hence the value of x is obtained as follows:

5x - 508 = x + 4.

4x = 512

x = 512/4

x = 128.

Then the measure of angle A is given as follows:

m < A = 5(128) - 508

m < A = 132º.

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Which equations have no real solution but have two complex solutions? please thanks

Answers

Answer3rd one and 1st

Step-by-step explanation:

The price of an item has been reduced by 80%. The original price was $70. What is the price of the item now?

Please help me it's timed, plus you'll get 100 points.

!!!If correct, Brainliest, Thanks, and 5 stars!!!

Answers

The new price would be $14.
The correct answer and item that cost 70$ being reduced by 80% is 14$.

Simplify the expression:
[tex]\frac{\frac{x-1}{x+1} -\frac{x+1}{x-1} }{\frac{x-1}{x+1} +\frac{x+1}{x-1} }[/tex]

Answers

Refer to the attached image.

the tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2000 miles. what is the probability a particular tire of this brand will last longer than 58,000 miles?

Answers

The probability that a tire of this brand will last longer than 58,000 miles is  0.8413 or 84.13%.

Given in the question that the tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2000 miles.

We have to calculate the probability that a particular tire of this brand which will last longer than 58,000 miles.

The standard normal variable corresponding to the given tire's tread life being longer than 58,000 miles can be calculated using the z-score formula:

The formula for computing a z-score is =(DataValue-Mean)/StDev

Therefore , we can write z = (58,000 - 60,000) / 2000

Hence, z = -1

Next, we can use a standard normal table to find the probability that a standard normal variable will be less than -1:

P(Z < -1) = 0.1587

Hence P = 1 - 0.1587

            P = 0.8413

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All students in the six grade either purchased their lunch or brought their lunch from home on Monday 24% of the students purchased their lunch 190 students brought their lunch from home how many students are in the six grade

Answers

Answer:

250

Step-by-step explanation:

190 students = 76%

190/76=2.5

2.5 x 100 =250

I need to know who to do these two problems

Answers

The value of the trigonometric function is -

sin(θ) = 21 / 29,

cos(θ) = 20/29,

csc(θ) = 29/21,

sec(θ) = 29/20,

cot(θ) = 20/21.

Given that,What is the trigonometric function?

In a nutshell, trigonometric functions, also referred to as circular functions, are the functions of a triangle's angle. This suggests that these trig functions provide the relationship between a triangle's angles and sides. Sine, cosine, tangent, cotangent, secant, and cosecant are the fundamental trigonometric functions.

Given that,

tan (θ) = - 21 / 20

We can infer from the value that the triangle's two legs are 21 and 20, respectively.

Using the Pythagorean theorem, we can:

[tex]a^{2} + b^{2} = c^{2}[/tex]

[tex](21)^{2} + (20)^{2} = c^{2}[/tex]

441 + 400 =[tex]c^{2}[/tex]

c = 29

The value of :

sin(θ) = 21 / 29

cos(θ) = 20/29

csc(θ) = 29/21

sec(θ) = 29/20

cot(θ) = 20/21

Hence, the value of the trigonometric function is

sin(θ) = 21 / 29,

cos(θ) = 20/29,

csc(θ) = 29/21,

sec(θ) = 29/20,

cot(θ) = 20/21.

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how to subtract a whole number from a mixed fraction?

Answers

You can convert the mixed fraction to decimal form then subtract it from the whole number.

Example:

5 - 1 1/2 ---> 5 - 1.5
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All your users work remotely. One of your users buys a notebook computer with Windows 10 Pro from an online store. The computer is to be used for company business. You need to upgrade the computer to Windows 10 Enterprise and join it to the CorpNet.xyz domain. You have the proper Microsoft 365 subscription and all other required licenses. What do you do? Why was the forced relocation of Cherokee Indians referred to as the Trail of Tears?ResponsesA They were being forced to leave the protection of the American militaryThey were being forced to leave the protection of the American militaryB They were forced to leave their ancestral land and many died along the wayThey were forced to leave their ancestral land and many died along the wayC They were heading into a battle that they knew they would loseThey were heading into a battle that they knew they would loseD They were being sold into slavery what is the one component in photosynthesis that is not recycled? Determine whether y varies directly with x. If so find the constant of variation k and write the equation.x y4 6.47. 11.210 1613. 20.8 aztecs culture sketch what are some positive aspects of the culture, in comparison with biblical values? In Country T, it takes 10 resources to produce 1 ton of cocoa and 13.5 resources to produce 1 ton of rice. In Country Y, it takes 40 resources to produce 1 ton of cocoa and 20 resources to produce 1 ton of rice. Country T has a comparative advantage over Country Y in cocoa. This follows the theory of comparative advantage, and we can say that engaging in free trade benefits all countries that participate in it; however, this conclusion stems from which of these inaccurate assumptions?a. We have assumed constant returns to scale.b. We have assumed the prices of resources and exchange rates in the two countries are dynamic.c. We have assumed there are barriers to the movement of resources from the production of one good to another within the same country.d. We have assumed that agrarian nations do not specialize in producing particular products.e. We have assumed diminishing returns to specialization. q6. the molecular formula for the amino acid lysine is c6h14n2o2. what would be the molecular formula for a polypeptide consisting of five lysine molecules? where on the persons abdomen should you give abdominal thrusts? Using the right-hand rule, in which direction will the single wire move, and in which direction will the loop rotate? What can I say back to someone who said: Im trying to get my stress together. perimeter of a triangle a bacterium that only possesses the ability to ferment obtains energy What happened to the sediment? Determine the truth value of the following statements if the universe of discourse of each variable is the set of real numbers. Enter your answer as Tor F. 1. 3xVy(xy = 0) 2. 3x (x2 = -1) 3. 3xVy 0(xy = 1) 4. VxSy((x + y = 2) A (2x - y = 1)) 5. Vx #03y(xy = 1) 6. 3x(x2 = 2) 7. Vx3y(x2 = y) 8. Vx3y (x = y) 9. 3x3y (x + y + y + x) 10. Vx3zty(z = xty) 11. 3x3y ((x + 2y = 2)^(2x + 4y = 5)) 12. Vx3y(x + y = 1) explain whether the following statement is true or false: $100 a year for 10 years is an annuity, but $100 in year 1, $200 in year 2, and $400 in years 3 through 10 does not constitute an annuity. however, the second series contains an annuity. Elam is packing his room to move into a new house. A small box can hold 8 books without breaking, while a large box can hold 12 books without breaking. He has at most 160 books to pack and less than 30 boxes total. Let s represent the number of small boxes and l represent the number of large boxes.The inequalities s 0 and l 0 are part of the system that models this scenario.Which inequalities complete the system?a:s l < 30b:8s 12l 160c:s + l < 30d:8s + 12l 160s + l > 308s + 12l 160s + l < 308s + 12l 160 Equivalent expressions to (4/5x+1)+(2/5x-1) when mendel crossed two purple-flowered pea plants with each other, he obtained a phenotypic ratio of 3:1 (purple-flowered pea plants to white-flowered pea plants). his results are consistent with which of the following sets of parents? How does Gatsby's connection with Dan Cody begin to develop the motif of wealth?Dan Cody leaves all of his money to GatsbyDan Cody shows Gatsby that you live longer if you are wealthierGatsby steals money from Dan Cody to become wealthierDan Cody gives Gatsby experiences that encourage him to pursue a life of wealth at the end of the song, the rapid and repetitive part that the pianist plays slows down and then stops altogether. which describe why this happens? which do not?