Mean deviation of 3, 5, 7, 9, 11, 13 is

Standard deviation of 3, 5, 7, 9, 11, 13 is

The mean deviation of 4, 7, 8, 9, 10, 12, 13, 17 about mean is

What is the standard deviation of 7, 9, 11, 13, 15?

What is the standard deviation of numbers 7, 9, 11, 13, 15?

For the following, calculate mean deviation and coefficient of mean deviation. 3, 9, 5, 3, 12, 10, 18, 4, 7, 19, 21

The standard deviation of the data 7,9,11,13,15 is

What is the mean of 3, 5, 7, 9, 11, 13, 15?

What is the mean of 1, 3, 5, 7, 9, 11, 13?