Question

to determine how american college students feel about statistics, approximately ten thousand statistics students at universities across the country were randomly chosen to participate. 538 of them responded to questions about how much they enjoyed their statistics course. the results of this survey are unreliable primarily because of response bias sampling bias nonresponse bias none of the above

Explanation:

Non - response bias occurs when a significant number of selected individuals do not respond. Here, out of ten thousand selected students, only 538 responded. The non - respondents may have different feelings about the statistics course than the respondents, thus skewing the results.

Answer:

C. nonresponse bias