For this set of data, the standard deviation (s) is equal to ______. 9, 8, 10, 5, 5, 2, 3, 6, 3
A) 2.83
B) 5.67
C) 8.00
D) 51

Question

Quizplus · Accepted Answer

To calculate the standard deviation, first we need to find the mean of the data set, which is (9+8+10+5+5+2+3+6+3)/9 = 5.56. Then we subtract the mean from each data point, square the differences, add them up, divide by the number of data points minus one, and finally take the square root. After these calculations, we get a standard deviation of approximately 2.83, which corresponds to choice letter A.

For This Set of Data, the Standard Deviation (S) Is