What is the probability of finding a Droite supporter among voters who earn 15 thousand dollars a year?
What is the probability of finding a Droite supporter among voters who earn 15 thousand dollars a year?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...
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Question
![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
(Y=0) (Y=1)
of dollars)
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 probability of finding a Droite supporter among voters who earn 15 thousand dollars a
year?
Round your answer to two decimal places. Note: if your answer for the probability is, for example,
25.32%, enter 0.25 (NOT 25.32).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1858a710-c111-4513-9004-6c10bf7d1d6e%2F175d9c0a-530d-4d95-ac91-4884aca8deab%2Fi0h72dd_processed.png&w=3840&q=75)
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
(Y=0) (Y=1)
of dollars)
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 probability of finding a Droite supporter among voters who earn 15 thousand dollars a
year?
Round your answer to two decimal places. Note: if your answer for the probability is, for example,
25.32%, enter 0.25 (NOT 25.32).
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