Question

Rylan is calculating the standard deviation of a data set that has 9 values. He determines that the sum of the squared deviations is 316. What is the standard deviation of the data set? Round the answer to the nearest tenth. Enter your answer in the box.

Answer 1

For all people that are in k12 this should be the right answer

Answer 2

First, we calculate for the variance by dividing the given sum of the squared deviations by the number of data.
variance = (316) / 9 = 316/9
Then, get the square root of the answer to calculate for the standard deviation.
sd = sqrt (316/9) = 5.93
Thus, the standard deviation is approximately 5.93.