Alex works as a health insurance agent for Medical Benefits Fund. The probability that he succeeds in selling an insurance policy to a given customer aged 25 or older is 0.45. On a given day, he interacts with 8 customers in this age range. Find the probability that he will sell. (a) at least one insurance policy on this day. (b) exactly 2 insurance policies on this day.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Alex works as a health insurance agent for Medical Benefits Fund. The probability that he succeeds in selling an insurance policy to a given customer aged 25 or older is 0.45. On a given day, he interacts with 8 customers in this age range. Find the probability that he will sell. (a) at least one insurance policy on this day. (b) exactly 2 insurance policies on this day.
106 runners at a marathon event were asked through which media channels they received
information about the marathon. The summary shows that 52 runners answered "TV ad-
vertising", 64 answered "social media" and 14 answered "others". Find the probability that
a runner selected at random from the marathon received information about the marathon
through:
(a) both TV advertising and social media;
(b) only TV advertising.
Transcribed Image Text:106 runners at a marathon event were asked through which media channels they received information about the marathon. The summary shows that 52 runners answered "TV ad- vertising", 64 answered "social media" and 14 answered "others". Find the probability that a runner selected at random from the marathon received information about the marathon through: (a) both TV advertising and social media; (b) only TV advertising.
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