Question: A professor surveyed students in her class to obtain sample data consisting of the number of credit cards students possess. Identify which of the following

A professor surveyed students in her class to obtain sample data consisting of the number of credit cards students possess.
Identify which of the following applies: simple random sample, systematic sample, convenience sample, stratified sample, or cluster sample. In each case, state whether you think the procedure is likely to yield a representative sample or a biased sample, and explain why.

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