SOLUTION: A sample of nine students is selected from among the students taking a particular exam. The nine students were asked how much time they had spent studying for the exam and the res

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Question 616220: A sample of nine students is selected from among the students taking a particular exam. The nine students were asked how much time they had spent studying for the exam and the responses (in hours) were as follows:
18, 7, 10, 13 12, 16, 5, 20, 21
Estimate the mean study time of all students taking the exam. Round your answer to the nearest tenth of an hour, if necessary.

Answer by solver91311(24713) About Me  (Show Source):
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Add the numbers and divide by the number of numbers.

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