Question
Use thegeometric probability distributionto solve the following problem. On the leeward side of the island of Oahu, in a small village, about87%of the residents are
Use thegeometric probability distributionto solve the following problem.
On the leeward side of the island of Oahu, in a small village, about87%of the residents are of Hawaiian ancestry. Letn= 1, 2, 3, ... represent the number of people you must meet until you encounter thefirstperson of Hawaiian ancestry in the village.
(a)Write out a formula for the probability distribution of the random variablen.
(b)Compute the probabilities thatn= 1,n= 2, andn= 3 rounded to 3 decimal places.
P(1) =
P(2) =
P(3) =
(c)Compute the probability thatn4.Hint:P(n4) = 1P(n= 1)P(n= 2)P(n= 3) rounded to 3 decimal places.
(d)What is the expected number of residents in the village you must meet before you encounter the first person of Hawaiian ancestry?Hint: Usefor the geometric distribution and round. Round to nearest whole number.
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