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For a $6 monthly fee the gas company guarantees customers complete service. The company estimates the...

For a $6 monthly fee the gas company guarantees customers complete service. The company estimates the probability that a customer will require one call in a month as 0.04 and the probability of two calls as 0.02. Assume that no more than two calls is ever needed. Each call costs the gas company $45. Let G be the gas company’s monthly gain from such a contract.

(a). Complete the probability distribution of G

gg 66 −39-39   
p(g)p(g) 0.940.94

(b). Find the expected value of G

(c). Find the standard deviation of G

math   Statistics-And-Probability   
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