What is the mean income of Gauche supporters?
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...
Related questions
Question

Transcribed Image Text:The population of voters in a hypothetical country was divided into income groups and also
according to the presidential candidate they supported: a left-wing candidate, Gauche, and a right-
wing candidate, Droite. Suppose the following table provides the joint probability distribution of
income and candidate supported:
Distribution of Income and Candidate
15
Income (X) Gauche Droite
(thousands
of dollars)
(Y=0) (Y=1)
40
75
150
Joint Probability
250
Sum
Candidate (Y)
0.20
0.09
0.14
0.09
0.02
0.54
0.09
0.07
0.15
A
0.04
B
Sum
0.29
с
0.29
0.20
0.06
1
What is the mean income of Gauche supporters?
Enter your answer in thousands of dollars and round your answer to one decimal place. So, if your
answer is 128.47 thousands of dollars, enter 128.5 in your answer. Do not include any dollar sign.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images

Recommended textbooks for you

A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON


A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
