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. Each student in a class of 25 students wrote down a random digit. What is the predicted number of students who wrote a digit that is greater than 7?. Each student in a class of 25 students wrote down a random digit. What is the predicted number of students who wrote a digit that is greater than 7?

 May 11, 2017
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2 out of 10 digits are greater than 7, so the probability of choosing these is 2/10.  Since there are 25 students the number likely to choose a number greater than 7 is (2/10)*25 or 5.

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 May 11, 2017

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