Now say the company randomly selects 10 independent reviews. We are interested in the number of 5 star reviews out of the 10 independent reviews. What is the probability that none of the 10 reviews are 5 stars (all 10 reviews are not 5 stars)? A smart phone application maker has compiled the following probability mass function table for the random variable,X, of how many stars a user gives an application in a review. A user may give 1, 2, 3, 4, or 5 stars in a review of anapplication (1 star is poor review and 5 star is great review).XP(X=x)=f(x)10.1020.2530.4040.1550.10

Here given probability mass function of variable X. x is how many star rating given by user . Now ,…

Answered: What is the probability that none of…

Math

Statistics

What is the probability that none of the 10 reviews are 5 stars (all 10 reviews are not 5 stars)?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Now say the company randomly selects 10 independent reviews. We are interested in the number of 5 star reviews out of the 10 independent reviews. What is the probability that none of the 10 reviews are 5 stars (all 10 reviews are not 5 stars)?

A smart phone application maker has compiled the following probability mass function table for the random variable,
X, of how many stars a user gives an application in a review. A user may give 1, 2, 3, 4, or 5 stars in a review of an
application (1 star is poor review and 5 star is great review).
X
P(X=x)=f(x)
1
0.10
2
0.25
3
0.40
4
0.15
5
0.10

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