Question

Is the sample representative of the population?

population: toll road users
sample: every 10th car passing through a toll booth



A.
representative


B.
not representative
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Answer 1

i got representative

Answer 2

but i don't think i am correct could some one explain to me and help me

Answer 3

I also need help on a few morre......Is the sample representative of the population?

population: all parents; sample: shoppers at a baby clothing store

A.
representative

B.
not representative

Answer 4

Which best describes bias, if any, from the sample surveyed?

survey: favorite vacation locations
sample: randomly selected visitors to a national park

A.
Since the sample is randomly selected, there is unlikely to be any bias.

B.
Since the people surveyed are visiting a national park, they may be biased against vacations close to home.

C.
Since the people surveyed are visiting a national park, they may be biased towards national parks.

D.
Since a large number of people visit national parks, the sample should be large enough to eliminate any bias.

Answer 5

A candidate for mayor wants to find out how the voters of her city feel about her positions on the issues.

Which surveying technique is most likely to give an unbiased report of the voters' opinions?

A.
Ask visitors to the candidate's website to respond to an online survey.

B.
Survey a random selection of people from the city's voter registration list.

C.
Survey every tenth person from a list of contributors to the candidate's campaign.

D.
Survey every fifth person who passes by the candidate's campaign headquarters.

Answer 6

To determine the favorite television programs of people in his age group, Jacob surveyed a group of his closest friends.

What is the most likely reason for bias in Jacob's survey?

A.
Some people among Jacob's friends may not watch much television.

B.
Friends sometimes joke around and may not give honest answers to the survey.

C.
Some of Jacob's friends may not want him to know their favorite programs.

D.
The group is not likely to be representative of all people in Jacob's age group.

Answer 7

@tennisrocks can you please help me

Answer 8

ok it is

Answer 9

i need help with all of them

Answer 10

@random231 plz help me

Answer 11

ok

Answer 12

um can you help me or not ?

Answer 13

A/C/D AND REPRESITATIVE