Question

how do you find the standard deviation of 7448, 4911, 9051, 6374, 4277

Answer 1

Your first step is to find the Mean [ average]

Answer 2

To calculate the Variance, take each difference, square it, and then average the result:

Answer 3

And the Standard Deviation is just the square root of Variance

Answer 4

http://www.mathsisfun.com/data/standard-deviation.html

Answer 5

what do i use the mean for?

Answer 6

Then for each number: subtract the Mean and square the result

Answer 7

there are examples in the link

Answer 8

calculator