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n200080 [17]
3 years ago
6

A university has ten dormitories for students. All of the dormitories have students of similar ages and offer the same convenien

ces. The director of housing wants to gather data by using a questionnaire with a sample of 100 students who live in the dormitories. Which of the following is the most statistically reliable method to gather that data? A,Take the list of all students who live in all ten dormitories. Randomly select 10 students from each of the dormitories to complete the questionnaire.
B.Send the questionnaire to every student who lives in a dormitory. Offer prizes to the first 10 students from each dormitory that completes the questionnaire.
C. Have volunteers walk around campus and randomly interview students. Give the questionnaires to the first 100 students who say they live in a dormitory.

D. Select one of the ten dormitories at random. Then randomly select 100 stu
dents from the list of all students who live in that dormitory to complete the questionnaire.
Mathematics
1 answer:
lina2011 [118]3 years ago
4 0

Answer:

a is correct

Step-by-step explanation:

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A telemarketer earns $150 each week plus $2 for each call that results in a sale.
zepelin [54]

Answer:

P = 2x + 150

Step-by-step explanation:

P = 2x + 150

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3. Write the equation of a line that is perpendicular to the given line and that passes through the given point.
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3 years ago
Kylo bought a pizza for $12.75 and four medium drinks at Pauli's Pizza. Define a variable and write an expression to represent t
mylen [45]

Answer:

Step-by-step explanation:

Let d be the cost of a drink.  The expression for the cost of the pizza and 4 drinks is

12.75 + 4d

If each drink costs $3, then

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3 0
3 years ago
A bag contains colored tiles
Veseljchak [2.6K]

Answer:

0.5

Step-by-step explanation:

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4 0
2 years ago
Part A: Students from 4 towns attend a conference. Each town is assigned a number from 1 to 4. Drag yes or no next to the first
Nonamiya [84]

Answer:

Part A - No

Part B - 100 %

Step-by-step explanation:

Part A.

This is because, a fair chance requires that each member has the same probability of being picked.

Since there are 4 towns, a fair chance would be 1/4.That is, 1 out of every town.

Part B

The probability of at least 1 representative after 6 number draws is P(at least 1)  = 1 - P(none from Town 1)

P(none from town 1) = 0

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P(at least 1)  = 1 - 0 = 1

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