A college professor wants to survey a sample of students taking his course. Here are some details about his course:


He teaches 5 sections of the course.

There are 250 total students across those sections.

There are 50 graduate students and 200 undergraduate students taking the course.

Each section has about 50 students (some graduate and some undergraduate).


The professor wants to take a sample of 30 students for a survey. He suspects that opinions on the survey may differ the most based on student type (graduate or undergraduate), so he wants to design his sample to take that into account. Which of these strategies will accomplish his intended design?


a. Randomly select 6 students from each section for the survey.

b. Randomly select 6 graduate students and 24 undergraduate students for the survey

c. For each section, randomly select one of the first 8 students to arrive to class, and every 8th student thereafter to take the survey.

d. Randomly select one of the sections and give the survey to every student in that section

Answers

Answer 1

Answer: B, Randomly select 6 graduate students and 24 undergrad students for the survey.

Step-by-step explanation: This guarantees that each type is proportionately represented in the survey.

Not A because it risks too many or too few graduate students. It is not C because again, it risks too many or too few graduate students. It is not D because each section has about 50 students and the professor only wants 30 in his sample.

Answer 2

Answer:

Step-by-step explanation:

B


Related Questions

(6x1000)+(1x10)+(8x1/1)+(9x1/10)+(4/100)=

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Let's evaluate ~

[tex]\qquad \tt \dashrightarrow \:(6 \times 1000) + (1 \times 10) + (8 \times \frac{1}{1} ) + (9 \times \frac{1}{10} ) + \frac{4}{100} [/tex]

[tex]\qquad \tt \dashrightarrow \:6000 + 10 + 8 + \frac{9}{10} + \frac{4}{100} [/tex]

[tex]\qquad \tt \dashrightarrow \: \dfrac{600000 + 1000 + 800 + 90 + 4}{100} [/tex]

[tex]\qquad \tt \dashrightarrow \: \dfrac{601894}{100} [/tex]

or

[tex]\qquad \tt \dashrightarrow \:{6018.94}{} [/tex]

An empty box weighs 13 ounces. The box is packed with large and small apples. Each large apple, I, weighs 4. 5

ounces and each small apple, s, weighs 3 ounces.

Enter an equation that can be used to determine the total weight, w, in ounces, of the loaded box containing / large

apples and s small apples.

Answers

Answer:

W = 13 + 4.5l + 3s

Step-by-step explanation:

We would have to add 13 because it's the natural weight. We don't know how many apples there are, but we know much weight is in each one. We will use the letters as the unknown. Then we will use 4.5 for L, and 3 for s

What is the value of 0.23? Enter your answer in the box.​

Answers

Since we have 0.2 cubed, we know that we have to multiply 0.2 3 times in order to get the value.

0.2 * 0.2 * 0.2 = 0.008

Your final answer should be 0.008


5. A bank has outstanding loans worth $10,000. Some were loan at 10% and some
were loaned at 7%. If the income from these loans was $820, how much was
loaned at 10%?

Answers

The total amount of the outstanding loan that the bank loaned at 10% interest rate is $4,000.

What are the linear equations that represent the question?

a + b = $10,000 equation 1

0.1a + 0.07b = 820 equation 2

Where:

a = amount loaned at 10%b = amount loaned at 7%

How much was loaned at 10%?

Multiply equation 1 by 0.07

0.07a + 0.07b = 700 equation 3

Subract equation 3 from equation 2

0.03a = 120

Divide both sides of the equation by 0.03

a = 120 / 0.03

a = $4000

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A furniture store has a sale during which the sale price of a sofa is 1/3 off its original price. The original price
of the sofa is $1,029. A customer can get an additional 5% discount off the sale price for paying with cash. At
checkout, a 6.5% sales tax on the final price is added to the cost of the sofa. What is the total cost of the sofa,
including sales tax, for a customer paying with cash?

Answers

Answer:

$694.06

Step-by-step explanation:

OG price= 1,029

discount=.05

sales tax =.065

1/3(og price)=1/3(1029)=343

one third of $1,029 is 343, hence we take off $343 from the orginial price

1029-343= $686--> sales price

.05*salesprice= .05*686=34.3

subtract 5% discount: 686-34.3= $651.71

=find 6.5% tax: .065*651.71= $42.36

add 6.5% tax:  651.81+42.36=694.06

The length of the base of a triangle is four more than twice the height. the area of the triangle is 80 m^2. find the lengths of the base and the height of the triangle.

can someone help me out with this? none of my friends understand this question either.

Answers

Its a cause it shows from the highlited section from the passage

Factor by grouping. (Pleaseeee helpppp lolll I don’t remember how to do this)

Answers

Answer:

(2v+3) (v^2+7)

Step-by-step explanation:

2v^3 + 3v^2 + 14v +21

v^2 (2v+3) + 7(2v+3)

= (2v+3) (v^2+7)

I think this is the correct answer from what I remeber, sorry if I may have it wrong.

PLEASE HELP ASAP! WILL GOVE BRAINLIEST!!! I NEED THIS DONE PLEASE FOLLOW DIRECTIONS!

Answers

Answer:

I'm not sure but

Step-by-step explanation: The area is 9.5 feet.

Giving Brainliest! 10 Points! Select all the correct answers.
Each of these scatter plots has a line of fit for its data points. Which graphs have a line that is a line of best fit for the data points?

Answers

Answer:

A and D

Step-by-step explanation:

Plato/Edmentum answer

The graphs have a line that is a line of best fit for the data points are:

scatter plot of options A and D.

What is a scatterplot?

A scatterplot is a type of graphical display that is used to represent the relationship between two continuous variables.

In a scatterplot, each point represents the values of the two variables, with one variable being plotted along the x-axis and the other variable being plotted along the y-axis.

The position of each point on the graph represents the values of both variables for that particular observation.

We have,

The line of best fit, also known as the regression line, is a straight line that is drawn through a scatter plot of data points to represent the trend or relationship between two variables.

In a scatter plot, the horizontal axis represents one variable, and the vertical axis represents the other variable.

The line of best fit is drawn in such a way that it minimizes the distance between the line and the data points.

We see that,

The scatter plot of option A and D graphs have a line that is a line of best fit for the data points.

Thus,

The scatter plot of option A and D graphs have a line that is a line of best fit for the data points.

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26% of 42 is what number

Answers

Answer:

10.92

Step-by-step explanation:

26% is equivalent to 0.26 (% is in terms of 100, so if you divide the percent by 100, you gte the decimal form)

You just multiply the decimal form by the number and your result is the answer

0.26x42=10.92

What specific measure of a geometric figure is shown in the image?

Answers

Answer:

A 140 degree angle. Think about where 90 degree angle is, where 180 degree angle is, and recognize that 140 degree angle is in between those. Also,  when it's saying side length, it's just saying how long the line itself is;)

Step-by-step explanation:

Answer:

A 140° angle

Step-by-step explanation:

It can be seen that the angle between 2 rays is being measured. Conveyor scale indicates 140° angle.

Hope this helps

Maria, age 28, wants to pay no more than $300 a year in life insurance. what is the face value of the largest 20-year term policy she can buy without spending more than $300 annually? annual life insurance premium (per 1,000 dollars of face value) for age 28. a 10-year term for female is 1.28, 15 year term for female is 1.54, 20 year term for female is 1.89, and whole life for female is 9.46. a. $234,000 b. $158,000 c. $11,000 d. $567,000

Answers

The face value of the largest 20-year term policy which Maria can buy without spending more than $300 annually is $158,000.

What is face value?

Face is the term used in finance, is used for the amount which has to be paid to the policyholder at the time of maturity.

Maria, age 28, wants to pay no more than $300 a year in life insurance.

The period for this policy is 20-year term.

Annual life insurance premium (per 1,000 dollars of face value) for age 28.

A 10-year term for female is 1.28, A 15 year term for female is 1.54, A 20 year term for female is 1.89, A whole life for female is 9.46.

For the 20 year term for female is 1.89 and annular premium is $300. Thus, the face value is,

[tex]\rm Face \; Value=\dfrac{300}{1.89}\times1000\\\rm Face \; Value\approx158000[/tex]

Thus, the face value of the largest 20-year term policy which Maria can buy without spending more than $300 annually is $158,000.

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Answer: B

on edge

Step-by-step explanation:

Jaime has a board that is 8 feet long. He cuts the board into three equal pieces. How long is each piece.

SHOW WORK PRETTY PLEASE WITH SUGARCANE JUICE!!!

Answers

Answer:
Each piece is 2 ft and 8 inches long.

Explanation:
12 inches are in a foot, so 12 times 8 equals 96.You then divide 96 by 3 which is 32.So 32 inches is 12in+12in+8in= 2feet 8 inches

Alia bought a home for her pet turtle. The rectangular tank is 3 feet long, 1 foot wide, and 2 feet high. What is the volume of the tank?


The volume of the tank is Blank

cubic feet

Answers

Answer:

Volume of tank = l×b×h

=3ft.×1ft.×2ft.

=6 ft³

Step-by-step explanation:

Hope it helps you. Please Mark me brilliant.

MAKE THIS INTO A TESTABLE QUESTION!!



"What do milkweed bugs eat"

pleasd help

Answers

Answer: what do milky buggies munch on UWU

Step-by-step explanation:

they feed on the leaves, stems, and seeds of milkweed

How many Cube Bs will fit into Cube A? Enter the max amount.

Answers

Answer:

8

Step-by-step explanation:

The answer is 8 because 1/2 times 1/2 times 1/2 is 1/8, which means that 8 B cubes can fit into cube A.

D
Question 6
11 pts
Use the previously created equation to solve for the verbal description (give your
answer to the nearest cent and include commas and decimal points). For example,
12,345,67
The value of a car purchased for $20,000 decreases at a rate of 12% per year. What
will be the value of the car after 3 years?
Question 7
79°F

Answers

so you'll need to find 12% off every year so after 1 year it'll be 2400 off meaning it'll be worth 17600 repeat for the next 2 years and by year 3 the value will be $13,629.44

Keisha's gym charges a one-time initial fee to join plus a monthly fee to maintain
membership. The graph below shows the cost of Keisha's gym membership.
select all the statements that are true about her gym membership costs.
The cost for 6 months is $120.00.
The initial fee to join the gym is $20.00.
The initial fee to join the gym is $30.00.
The gym membership fee is $20.00 per month.
The gym membership fee is $30.00 per month

Answers

Answer:

B and E

Step-by-step explanation:

^

what is the volume of this shape

Answers

Answer:

C -- 72

Step-by-step explanation:

Formula B x W x H

B = base

W = with

H = hight

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!

To find volume it is length x breadth x height and therefore it is 9 x 4 x 2

Simplify: 5(x - 12)

5x - 12
5x - 60
65x
7x

Answers

Answer:

5x - 60

Explanation:

[tex]\dashrightarrow \sf 5(x - 12)[/tex]

using distributive method :  a(b + c) = a(b) + a(c)

[tex]\dashrightarrow \sf 5(x) +5(- 12)[/tex]

[tex]\dashrightarrow \sf 5x -60[/tex]

5x-60 is the answer

Which of the following is the equation of a line in slope-intercept form for a
line with slope = { and y-intercept at (0.-2)?
y
O A. y=-x-2
ОВ
O B. y=x-2
{
O C. y=-x+
OD. y=-2x
2
SUBMIT

Answers

Answer:

Option B is the correct answer

Step-by-step explanation:

Hope it helps you in your learning process.

Can someone please help me ? Thank youu !

Answers

Answer:

B

Step-by-step explanation:

Find the MAD for this data set

Answers

Answer:

O.8 is the answer

Step-by-step explanation:

X^2 +8x+7

What is the vertex?
(X= -b/2a)

What is the Y intercept?

Answers

Step-by-step explanation:

any quadratic equation has the form

y = ax² + bx + c

so, we can see in our case

a = 1

b = 8

c = 7

the x value of the vertex is indeed camcorders by

x = -b/(2a) = -8/2 = -4

the corresponding y we get then

y = (-4)² + 8×-4 + 7 = 16 - 32 + 7 = -9

the vertex = (-4, -9).

the y- intercept is simply the point with x = 0 (and the corresponding y value).

which is c, because

y = 0² + 8×0 + 7 = 7

the y-intercept = (0, 7)

please help me i will give brainliest

Answers

Answer:

Look below

Step-by-step explanation:

We know QS is parallel to RT, so that will be the first one. We also know that r is congruent to s, so add that if possible

Next, we have to use the alt. int. angles are congruent theorem, so we can say that angle QTR and angle SOT are congruent due to this rule.

Next we have to use reflexive property, and the only thing that fits is the transversal intersecting the parallel lines. So we can say that QT is congruent to TQ.

Then we can say that triangle SQT and triangle ROT are congruent due to SAS.

Finally, we can say angle QTS is congruent to angle TQR because of corresp. parts of congruent triangles are congruent(CPCTC for short)

I hope this helped!

It would be greatly appreciated if you marked this answer as brainliest!

28.2
с
45.8
В
о
mzB =

Answers

Answer:

17.6

I hope this helps :)

Determine if \sqrt{41}
41

is rational or irrational and give a reason for your answer.

Answers

Assume √41 is rational, so that there exist integers p, q such that

[tex]\sqrt{41} = \dfrac pq[/tex]

and p/q is irreducible. Taking squares, this would mean

[tex]41 = \dfrac{p^2}{q^2} \implies p^2 = 41q^2[/tex]

This tells us that 41 is a factor of p², which in turn means 41 is a factor of p because 41 is prime. We can consequently write p = 41n for some integer n. But then

[tex]p^2 = (41n)^2=41q^2 \implies 41n^2 = q^2[/tex]

which says 41 also divides q² and hence divides q as well. In other words, p/q is reducible, so we have a contradiction.

mode is 7. find the missing value for this list: 1,4,7,5,7,X,3,6,3,5,9

Answers

Answer:

the missing value is 7

Step-by-step explanation:

mode means the highest occuring number and from the figures above, the numbers the occured the most are 3,5and7. they appeared two times and since from the question it's said that 7 is the mode, it means that 7 should occure more than 3 and 5. so the missing value is 7.

Select all the expressions that equal 4×106.


(2×108)(2×10-2)


40×105


40 6


400,000


1. 2×1093×102

Answers

Answer:

None of the expressions are equal to 4*106

Step-by-step explanation:

(2×108)(2×10-2) does not equal 4*106

40×105 does not equal 4*106

40 6 does not equal 4*106

400,000 does not equal 4*106

2×1093×102 does not equal 4*106

Hunter earned a grade of 66% on his multiple choice math final that had a total of 200 problems. How many problems on the final exam did Hunter get wrong?

Answers

Since the total number we are dealing with is 200, and our final percentile grade is a 66%, we can estimate already that he missed under half the questions, which means he has a score that is over 100/200, or 50%. But its not too much higher because 130/200 would be a little too much, however if we add two more points we would have a 132/200, which is equivalent to 66%

There are 68 problems on the final exam did Hunter get wrong.

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

Given that;

Hunter earned a grade of 66% on his multiple choice math final that had a total of 200 problems.

Now,

Since, Hunter earned a grade of 66% on his multiple choice math final that had a total of 200 problems.

Hence, The correct problem = 66% of 200

                                            = 66/100 x 200

                                            = 66 x 2

                                            = 132

Thus, The incorrect question = 200 - 132

                                             = 68

Therefore, There are 68 problems on the final exam did Hunter get wrong.

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How many Hydrogen moles needed to get the energy to equal 1 mol of gasoline? Sales tax in your community is 5. 25 cents for each dollar spent. What is the total cost at the movies for three tickets at$8. 50, three bags of popcorn for $1. 25 each, and two soft drinks for $1. 50 each?3(8. 50 +1. 25 +1. 50) +5. 25 = 38. 901. 0525{3(8. 50 +1. 25 +1. 50)} = 35. 521. 0525{3(8. 50 +1. 25) +2(1. 50)} = 33. 943(8. 50 +1. 25 +1. 50) +. 0525 = 33. 82O3(8. 50 +1. 25) + 2(1. 50) +. 0525 = 32. 30 HELPPP! Lin selects one type of lettuce and one dressing to make a salad. If you paid $1050 for a $1000 10-year bond that pays an 11% annual interest payment, the bond's yield is Which of the following figures has exactly 1 line of symmetry? How did the Catholic Church plan to reach its goals? Choose three correct answers. Which transformations are needed to change the parent cosine function to y = 0.35 cosine (8 (x minus startfraction pi over 4 endfraction))? S and E are midpoints of BA and AM, respectively. Use the properties of mid segments to find the perimeter of BAM What advice would you give to people who may go through a crisis like this pandemic in the future? What is something important that you believe people need to know to prepare themselves for the unexpected? GDP is composed of four components. Which of the following is NOT a component of GDP What are the three components of personality, and how does personality develop in relation to each? Covalent bonding involves the sharing of electrons to create a full valence shell, andoccurs between nonmetals.TrueFalse a combination of numbers symbols and operations that shows a certain value A scientist has four petri dishes of different sizes. each dish contains a different number of bacteria. a 3-column table has 4 rows. the first column has entries dish a, dish b, dish c, dish d. the second column is labeled population of bacteria with entries 7,200, 10,000, 13,650, 21,350. the third column is labeled area (millimeters squared) with entries 2,826, 7,850, 20,096, 31,400. find each population density, to the nearest hundredth. which statement is true? dish a has the lowest population density. dish c has the greatest population density. dish a and dish b have approximately the same population density. dish c and dish d have approximately the same population density. Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)Incorrect Chlorophyll? Describe the tone of the article and how the author's choice of words creates it. Cite at leastwo specific words and phrases chosen by the author to support your answer. Prime time for cicadas After first entering the ocean, ascuba diver descends to a depth 18feet below the surface of the water.The diver then ascends 7feet before descending 18 feetagain. What is the final depth of thediver below the surface of thewater?A. -29 feetB. -43 feetC. 29 feetD. 43 feet What risk does Sarah run if she chooses a long-term care policy with a short benefit period of 2 years 10. A gas occupies 1200.0 mL at a temperature of 32.0 C.What is the volume at 132.0 C? The Answer is actually B I took the test