You are given the following probability distribution:

x

-1

0

1

2

3

P(x)

0.1

0.3

0.4

0.1

0.1

1.       What is the expected value of the probability distribution? (Show work and round the answer to one decimal place)  

2.       What is the standard deviation of the probability distribution? (Show work and round the answer to two decimal places)

 

 

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