Question

Consider the following data: x 4 5 6 7 8 P(X=x) 0.3 0.2 0.1 0.1 0.3...

Consider the following data:

x 4 5 6 7 8
P(X=x) 0.3 0.2 0.1 0.1 0.3

Step 1 of 5 :  

Find the expected value E(X). Round your answer to one decimal place.

Step 2 of 5:

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

Step 3 of 5:

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

Step 4 of 5:

Find the value of P(X>4). Round your answer to one decimal place.

Step 5 of 5:

Find the value of P(X < or = to 8). Round your answer to one decimal place.

Math   Statistics-And-Probability   
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