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Points: 2Question 2
Ten employees of a nursing home, having been given a course in cardiopulmonary resuscitation (CPR), scored 17, 20, 12, 14, 18, 23, 17, 19, 18, and 15 on a test administered after the completion of the course. Find the standard deviation and variance.
Standard deviation = 2.97; Variance = 8.81
Standard deviation = 8.81; Variance = 8.81
Standard deviation = 8.81; Variance = 2.97
Standard deviation = 3.13; Variance = 9.59

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