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1. The following are a Student's score on five consecutive Math test in his class. 75, 86, 89, 95, and 78 (a). Find the mean

1.The following are a Student's score on five consecutive Math test in his class.

75, 86, 89, 95, and 78

(a).Find the mean test score. (5 pts)

Soln.

(b). Find the median test score. (5 pts)

Soln.

(c).Find the standard deviation of the test score. (10 pts)

Soln.

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