Given that she approaches 10 people, find the probability that she will makes at most 3 sales. Interpret the value obtained. What is the probability that she will makes the first sale at the fifth person she approaches? What is the probability that she will makes 4 sales before the seventh person she approaches?
Given that she approaches 10 people, find the probability that she will makes at most 3 sales. Interpret the value obtained. What is the probability that she will makes the first sale at the fifth person she approaches? What is the probability that she will makes 4 sales before the seventh person she approaches?
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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Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Transcribed Image Text:QUESTION 2
Jenny sells 'honey tea' to raise fund for homeless people. The probability of making a sale is,
independently, 0.3 for each person she approaches.
а)
Given that she approaches 10 people, find the probability that she will makes at most 3
sales. Interpret the value obtained.
b)
What is the probability that she will makes the first sale at the fifth person she
approaches?
c)
What is the probability that she will makes 4 sales before the seventh person she
approaches?
Based on Jenny's experience selling 'honey tea' for the last 2 weeks, the probability that
the person she approaches will buy 0, 1, 2 or more than 2 cups are 0.7, 0.15, 0.10 and
d)
0.05 respectively. Jenny plans to approached 20 persons. What is the probability that 10
will not buy, 3 will buy 1 cup, 4 will buy 2 cups and the rest will buy than 2 cups?
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