Of 1000 shoppers entering the Shirt ‘n’ Shorts Booutique, 700 were interested in shirts and 600 were interested in shorts. Half shoppers were interested in both shirts and shorts. If a shopper is selected at random, find the probability that a. he/she is interested in at least one. b. he/she is interested in exactly one of the items.

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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Of 1000 shoppers entering the Shirt ‘n’ Shorts Booutique, 700 were interested in shirts and 600 were interested in shorts. Half shoppers were interested in both shirts and shorts. If a shopper is selected at random, find the probability that

a. he/she is interested in at least one.

b. he/she is interested in exactly one of the items.

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