Compute Standard Deviation from a frequency table
X P(X=x)
(5 @ .12)
(6 @ .24)
(8 @ .44)
(10 @ .20)
What is the standard deviation of X?
© BrainMass Inc. brainmass.com December 19, 2018, 7:23 pm ad1c9bdddfhttps://brainmass.com/statistics/quantative-analysis-of-data/compute-standard-deviation-from-a-frequency-table-1833
Solution Preview
So, standard deviation is computed as follows...
sqrt[E(x^2)-(Ex)^2]
So to find E(x) (the mean) we ...
Solution Summary
A step-by-step solution shows the student how to calculate the standard deviation given a probability distribution.
$2.19