Probability In Exercises 77 and 78, the random variable represents the number of units
Chapter 9, Problem 78(choose chapter or problem)
Probability In Exercises 77 and 78, the random variable represents the number of units of a product sold per day in a store. The probability distribution of n is given by P(n). Find the probability that two units are sold in a given day [P(2)] and show that \(P(0)+P(1)+P(2)+P(3)+\cdots=1\)
\(P(n)=\frac{1}{3}\left(\frac{2}{3}\right)^{n}\)
Text Transcription:
P(0)+P(1)+P(2)+P(3)+...=1
P(n)=1/3(2/3)^n
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