Question

Consider the following data: x 4 5 6 7 8 P(X=x) 0.1 0.1 0.2 0.2 0.4...

Consider the following data:

x 4 5 6 7 8
P(X=x) 0.1 0.1 0.2 0.2 0.4

Find the variance. Round your answer to one decimal place.

Find the standard deviation. Round your answer to one decimal place.

Find the value of P(X<5). Round your answer to one decimal place.​

Find the value of P(X>7). Round your answer to one decimal place.

Math   Statistics-And-Probability   
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Answer #1

4 0.1 0.4 1.6
5 0.1 0.5 2.5
6 0.2 1.2 7.2
7 0.2 1.4 9.8
8 0.4 3.2 25.6

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