The costs (in dollars) of 10 college math textbooks are listed below. Find the sample standard deviation.70 72 71 70 69 73 69 68 70 71
A) $1.49
B) $70.30
C) $5.00
D) $2.23

Question

Quizplus · Accepted Answer

The sample standard deviation is calculated by finding the square root of the variance. First, find the mean of the data set, then calculate the squared differences from the mean, find the average of those squared differences, and finally take the square root. The correct calculation results in a sample standard deviation of approximately $1.49.

The Costs (In Dollars) of 10 College Math Textbooks Are