Q5) A person who conducts telephone surveys must complete 3 more surveys before the end of their shift. For each randomly dialed number, there is a 9% chance of reaching a person who completes the survey. a) What is the probability that the 3rd completed survey will occur on the 10th call? b) What is the probability that more than three completed surveys will occur in 10 calls? c) Draw a diagram of the distribution of surveys completed in 10 calls specifying their mean value and standard deviation (It is recommended to use formula for mean and standard).

Q5) A person who conducts telephone surveys must complete 3 more surveys before the end of their shift. For each randomly dialed number, there is a 9% chance of reaching a person who completes the survey. a) What is the probability that the 3rd completed survey will occur on the 10th call? b) What is the probability that more than three completed surveys will occur in 10 calls? c) Draw a diagram of the distribution of surveys completed in 10 calls specifying their mean value and standard deviation (It is recommended to use formula for mean and standard).

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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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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

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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Q5) A person who conducts telephone surveys must complete 3 more surveys before
the end of their shift. For each randomly dialed number, there is a 9% chance of
reaching a person who completes the survey.
a) What is the probability that the 3rd completed survey will occur on the 10th call?
b) What is the probability that more than three completed surveys will occur in 10
calls?
c) Draw a diagram of the distribution of surveys completed in 10 calls specifying their
mean value and standard deviation (It is recommended to use formula for mean and
standard).

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