The probability that a man will live until 70 years is 3/4 and the probability that his wife will live until 70 years is 4/5. What is the probability that at least one will live until 70 years? 19/20 1/20 2/5 17/20

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The probability that a man will live until 70 years is 3/4 and the probability that his wife will
live until 70 years is 4/5.
What is the probability that at least one will live until 70 years?
O 19/20
O 1/20
2/5
O 17/20
Transcribed Image Text:The probability that a man will live until 70 years is 3/4 and the probability that his wife will live until 70 years is 4/5. What is the probability that at least one will live until 70 years? O 19/20 O 1/20 2/5 O 17/20
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