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Homework answers / question archive / A guy took a sample of 10 midterm exam scores from a class of 30 students

A guy took a sample of 10 midterm exam scores from a class of 30 students

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A guy took a sample of 10 midterm exam scores from a class of 30 students. The 10 scores are shown in the table below:

95 67 76 47 85 70 87 80 67 72

(a) What is the sample mean?

(b) What is the sample standard deviation? (Round your answer to two decimal places)

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