Exam (elaborations)
Knewton Alta Chapter 2 test- Descriptive statistics - part 3 with Questions with 100% Correct Answers
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The heights, in inches, of the members of a barbershop quartet of singers are listed below. 72,68,67,73 If the population variance for this data set is 6.5, what is the standard deviation of the heights of the barbershop quartet? Round your answer to 2 decimal places. - Answer Correct answers:2.55 The standard deviation is the square root of the variance. Since the population variance is 6.5, the (population) standard deviation is 6.5−−−√≈2.549 . So to two decimal places, the standard deviation is 2.55.
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knewton alta chapter 2 test
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descriptive statisticpart 3
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