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26 February, 09:07

A researcher finds that 15% of all commuters in a metropolitan area take the train to work. The researcher polls 250 people in the area and asks them whether they take the train to work. What is the number of trials for this binomial experiment? A. 15 B. 38 C. 250 D. 265

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  1. 26 February, 10:06
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    The number of trials is the number of sample which is 250.

    Option C is the correct answer.
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