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const2013 [10]
3 years ago
8

A politician running for office called random phone numbers to see what proportion of the vote he could anticipate getting. From

his sample of responses, he estimated that he would get 47% ± 4% of the vote with 90% confidence. When calling, some people refused to answer his question about whether they plan to vote for him, some people never answered the phone (even after repeated calls), some people do not have landlines (or are unlisted), some people may not have told the truth since the politician himself talked to them, and some were not sure yet whom they plan to vote for.
What biases are present that cannot be accounted for through margin of error? Check all that apply.
voluntary response bias
undercoverage
response bias
nonresponse bias
sampling variation
Mathematics
1 answer:
Dmitrij [34]3 years ago
7 0

Answer:

It’s B, C, D

Step-by-step explanation:

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Counted a total of 40 white cars and yellow cars there were 9 times as many as white cars as yellow cars. how many white cars di
Law Incorporation [45]
Let W = number of white cars, and Y = number of yellow cars.
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So we get the system:
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In the first equation, we multiply by 9:
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In the second equation:
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W-9Y = 0

Then we add the first with the second equation:
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So He counted 36 white cars.

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Answer:

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