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Use excel to find the following please thank you! The probability distribution of X, the number...

Use excel to find the following please thank you!

The probability distribution of X, the number of defective tires on a randomly selected automobile checked at a certain station is given by the table. X 0 1 2 3 4 p(X) 0.54 0.16 0.06 0.04 0.2 Table 4: Distribution for defective tires

Find:

a. E(X)

b. E(X2)

C. σX (8) A sample of 600 Scholastic Aptitude Test (SAT) results has mean of 500 and standard deviation of 100.

Math   Statistics-And-Probability   
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