From industry statistics, a credit card company knows that 0.8 of its potential card holders are good credit risks and 0.2 are bad credit risks. The company uses discriminant analysis to screen credit card applicants and determine which ones should receive credit cards. The company awards credit cards to 70% of those who apply. The company has found that of those awarded credit cards, 95% turn out to be good credit risks. What is the probability that an applicant who is a bad credit risk will be denied a credit card?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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How do you calculate the marginal numbers in this chart?

From industry statistics, a credit card company knows that 0.8 of its
potential card holders are good credit risks and 0.2 are bad credit risks.
The company uses discriminant analysis to screen credit card applicants
and determine which ones should receive credit cards. The company
awards credit cards to 70% of those who apply. The company has found
that of those awarded credit cards, 95% turn out to be good credit risks.
What is the probability that an applicant who is a bad credit risk will be
denied a credit card?
Transcribed Image Text:From industry statistics, a credit card company knows that 0.8 of its potential card holders are good credit risks and 0.2 are bad credit risks. The company uses discriminant analysis to screen credit card applicants and determine which ones should receive credit cards. The company awards credit cards to 70% of those who apply. The company has found that of those awarded credit cards, 95% turn out to be good credit risks. What is the probability that an applicant who is a bad credit risk will be denied a credit card?
According to the provided information of the
problem and by using the definition of
conditional probability, the following table can be
constructed,
Credit Risk
Good
Bad
Marginal
Credit Awarded
0.665
0.035
0.7
Credit Denied
0.135
0.165
0.3
marginal
0.8
0.2
Transcribed Image Text:According to the provided information of the problem and by using the definition of conditional probability, the following table can be constructed, Credit Risk Good Bad Marginal Credit Awarded 0.665 0.035 0.7 Credit Denied 0.135 0.165 0.3 marginal 0.8 0.2
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