What are the variance and standard deviation of {1, 1, 1, 1, 1, 7000, 1, 1, 1, 1, 1, 1, 1, 1, 1}?
1 Answer
Dec 17, 2016
Explanation:
first find the average:
average =
find deviations for each number- this is done by subtracting the average:
then square each deviation:
the variance is the mean of these values:
variance =
the standard deviation is the square root of the variance: