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madam [21]
3 years ago
9

Marcus wants to know if students at his school like to sing in the shower. He polled 40 students who were not part of the school

choir. He found that 11 of the surveyed students enjoy singing in the shower. Is there a sampling bias in the situation above? A. No. Marcus selected a random, unbiased sample for his study. B. Yes. Marcus created bias by only polling 40 students. C. Yes. Marcus created bias by excluding students who are in the choir. D. There is not enough information to determine if Marcus selected a biased sample.
Mathematics
1 answer:
telo118 [61]3 years ago
5 0

Answer:

C

Step-by-step explanation:

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Answer:

  5x +12 = 3

Step-by-step explanation:

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3 years ago
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Now rewrite the fraction as decimals:

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Multiply the original size by the scale factor to use:

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3 years ago
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Answer:

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The fraction donated was $632/$7900.

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I believe the answer is A. X-Coordinate


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