What is the variance of the following data? If necessary, round your answer to two decimal places. 12, 13, 8, 13, 9, 11, 12, 9, 11

Question

Mathematics

Barney

10 January, 21:46

What is the variance of the following data? If necessary, round your answer to two decimal places. 12, 13, 8, 13, 9, 11, 12, 9, 11

+1

Answers (1)

Know the Answer?

Dalia Ware · Answer 1

To find the variance, 1. Find the arithmetic mean (average) 2. Find the distance of each number from the mean (x-the mean=?) 3. Square each number 4. Add up all of the squares 5. Divide the final sum by the original mean.