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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. The 10 scores are shown in the table below:
95 | 67 | 76 | 47 | 85 | 70 | 87 | 80 | 67 | 72 |
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(a) What is the sample mean?
(b) What is the sample standard deviation? (Round your answer to two decimal places)