Question: The random variable X takes on the values 5, 20, 30, and 200with probabilites 0.60, 0.30, 0.08, and 0.02 respectively. Use the statistical capacity of

The random variableXtakes on the values 5, 20, 30, and 200with probabilites 0.60, 0.30, 0.08, and 0.02 respectively.

Use the statistical capacity of your calculator to find the expectedvalue ofXrounded to one place of decimal. The same data will be

used in question 4, so don't clear your calculator just yet.

Using the same data as in Question 3, find theVARIANCEof the random variable X rounded to two places of decimal.

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