Sampling and Populations

Sampling and Populations

7th Grade

7 Qs

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Sampling and Populations

Sampling and Populations

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Medium

Created by

LAURA MCFADDEN

Used 6+ times

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7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To determine how many people in a town support a new tax levy, 200 people are randomly selected from a phone book and then surveyed over the phone. Identify each sample as biased or unbiased and describe its type.

unbiased; systematic random sample

unbiased; simple random sample

biased; convenience sample

biased; voluntary response sample

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To determine the number of households in a town that recycle, 40 households from the same street are polled. Identify each sample as biased or unbiased and describe its type.

biased; convenience sample

biased; voluntary response sample

unbiased; stratified random sample

unbiased; systematic random sample

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To determine the usual demand of a Web site, the number of users currently visiting the Web site is recorded every hour. Identify each sample as biased or unbiased and describe its type.

unbiased; stratified random sample

biased; convenience sample

unbiased; systematic random sample

biased; voluntary response sample

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The yearbook staff wanted to find out how many students would buy a yearbook. So, the staff surveyed 15 students who were in the school library after school. The results are in the graph. Is this sampling method valid? If so, about how many of the 1287 students in the school will buy yearbooks?

valid; 343 students

valid; 944 students

valid; 1100 students

not valid

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

They randomly surveyed 200 patrons and 6 patrons responded that they would regularly check out books from an enlarged print section. If the library has a total of 3200 patrons, how many people can they expect to regularly check out books from an enlarged print section?

96 people

960 people

206 people

6 people

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To determine whether students will attend the spring craft fair, Andrea surveyed the art classes. Identify the sample as biased or unbiased and describe its type.

unbiased, simple random sample

unbiased, stratified random sample

biased, voluntary response sample

biased, convenience sample

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During production, a manufacturer of clock radios pulls every 75th radio from the assembly line to check for overall quality. Identify the sample as biased or unbiased and describe its type.

unbiased, systematic random sample

biased, voluntary response sample

unbiased, simple random sample

unbiased, stratified random sample

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