An ad agency is developing a campaign to promote a business opening in new mall development. To develop an appropriate mailing list, they decide to purchase lists of credit card holders from MasterCard and American Express. Combining the lists, they find the following: 40 percent of the people on the list have only a MasterCard and 10 percent have only an American Express card. Another 20 percent hold both MasterCard and American Express. Finally, 30 percent of those on the list have neither card. The contingency table is as the following: MasterCard No MasterCard .10 American Express 20 No American Express.40 What is the probability that a person on the list does not have a Mastercard? Select one: O a. .90 O b. 40 O c. 18 O d. 33 O e. .70
An ad agency is developing a campaign to promote a business opening in new mall development. To develop an appropriate mailing list, they decide to purchase lists of credit card holders from MasterCard and American Express. Combining the lists, they find the following: 40 percent of the people on the list have only a MasterCard and 10 percent have only an American Express card. Another 20 percent hold both MasterCard and American Express. Finally, 30 percent of those on the list have neither card. The contingency table is as the following: MasterCard No MasterCard .10 American Express 20 No American Express.40 What is the probability that a person on the list does not have a Mastercard? Select one: O a. .90 O b. 40 O c. 18 O d. 33 O e. .70
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Transcribed Image Text:An ad agency is developing a campaign to promote a business opening in new mall development. To develop
an appropriate mailing list, they decide to purchase lists of credit card holders from MasterCard and American
Express. Combining the lists, they find the following: 40 percent of the people on the list have only a
MasterCard and 10 percent have only an American Express card. Another 20 percent hold both MasterCard
and American Express. Finally, 30 percent of those on the list have neither card. The contingency table is as the
following:
MasterCard No MasterCard
.10
American Express 20
No American Express.40
What is the probability that a person on the list does not have a Mastercard?
Select one:
O a. .90
O b. 40
O C. .18
d. .33
e. .70
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