SOLUTION: Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.3 0.5 0.2

Algebra ->  Probability-and-statistics -> SOLUTION: Find the mean and standard deviation of the following probability distribution: x 1 2 3 P(x) 0.3 0.5 0.2      Log On


   

Question 638632: Find the mean and standard deviation of the following probability distribution:

x

1

2

3
P(x)

0.3

0.5

0.2
Answer by reviewermath(1029) About Me  (Show Source):
You can put this solution on YOUR website!
mean = 1(0.3) + 2(0.5) + 3(0.2) = highlight%281.9%29
standard deviation =