Ms. Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about accelerati
on due to gravity. The program reports a mean of 31.5 and a standard deviation of 2.5. What is the variance of the data? Round to the nearest tenth. a. 2.5b. 5.6c. 1.6d. 6.3
Given : Ms. Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about acceleration due to gravity.
The program reports a mean and a standard deviation
We know that the variance is the square of the standard deviation.