Question

5.1 Given the following probability distributions: a. Compute the expected value for each distribution. b. Compute...

5.1 Given the following probability distributions:

a. Compute the expected value for each distribution.
b. Compute the standard deviation for each distribution. c. Compare the results of distributions A and B.

Distribution A

Distribution B

xi

P1X = xi2

xi

P1X = xi2

0

0.07

0

0.50

1

0.08

1

0.20

2

0.15

2

0.15

3

0.20

3

0.08

4

0.50

4

0.07
Math   Statistics-And-Probability   
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Answer #1

For Distribution A,

For Distribution B,

c.

We observe that the expected value for distribution A is greater than that for distribution B.

Another observation is that the standard deviations of the two distributions are equal.

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