SOLUTION: Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.1 0.2 0.7 Please show all of your work.

SOLUTION: Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.1 0.2 0.7 Please show all of your work.

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Question 359003: Find the mean and standard deviation of the following probability distribution:
x 1 2 3
P(x)
0.1
0.2
0.7

Please show all of your work.

Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
Mean =
Variance =
=.
Thus ,
standard deviation = , to four decimal places.
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