SOLUTION: Let x represent the number of times a customer saw a TV ad prior to making their purchase. A probability distribution for x based on a survey of recent buyers is given below.

Algebra ->  Probability-and-statistics -> SOLUTION: Let x represent the number of times a customer saw a TV ad prior to making their purchase. A probability distribution for x based on a survey of recent buyers is given below.       Log On


   

Question 582819:
Let x represent the number of times a customer saw a TV ad prior to making their purchase. A probability distribution for x based on a survey of recent buyers is given below.
Number of times the buyer saw the ad 1 2 3 4 5
Probability 0.27 0.31 0.18 0.09 0.15
What is the probability that the buyer saw the ad three or more times before purchasing?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Number of times the buyer saw the ad 1:: 2:: 3::: 4:::: 5
Probability:::::::::::::::::::::: 0.27 0.31 0.18 0.09 0.15
What is the probability that the buyer saw the ad three or more times before purchasing?
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Ans: 0.18 + 0.09 + 0.15 = 0.42
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Cheers,
Stan H.