Monday, December 7, 2009

population standard deviation

Population Standard Deviation

-measure of variability within a data set
-measures how varied the data set is, relative to itself
(How spread out the numbers are)

The formula for finding this would be:

"The square root of the quotient between the sum of all x subtract x bar squared divided by n."

HOMEWORK:

1. Find data
2. Calculate the population standard deviation

mean= x bar

No comments: