A measure describing how close members of a data set are in relation to each other.
Answer the following questions about variance..
Select your answers from the menus
a) Where will most of the members of a data set generally fall on the bell curve?
within 1 standard deviation more than the mean
within 1 standard deviation below the mean
within 1 standard deviation more or less than the mean
within 2 standard deviations more than the mean
b) If you know the variance, how do you find the standard deviation?
square the variance
take the square root of the variance
subtract the variance from 1
c) What does a standard deviation tell you?
-the difference between largest and smallest number
which number appears the most
how far data is from the mean