What is the expected bonus you will receive?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
You are a developer of the app. The owner of the company decides to give you a bonus. The bonus is such that they will randomly sample two independent reviews, and give you $2 (two dollars) for each star across these two reviews. Thus if one review is 3 stars and the other is 4 stars, you will receive $14.
What is the expected bonus you will receive?
Round to the nearest tenth, X.X
Transcribed Image Text: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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