A study concluded that following 7 simple health rules can extend a man's life by 11 years on the average and a woman's life by 7 years. These 7 rules are as follows: no smoking, get regular exercise, use alcohol only in moderation, get 7 to 8 hours of sleep, maintain proper weight, eat breakfast, and do not eat between meals. In how many ways can a person adopt 5 of these rules to follow (a) if the person presently violates 4 of the 7 rules? (b) if the person always gets between 7 and 8 hours of sleep? (a) There are ways. (b) There are ways.
A study concluded that following 7 simple health rules can extend a man's life by 11 years on the average and a woman's life by 7 years. These 7 rules are as follows: no smoking, get regular exercise, use alcohol only in moderation, get 7 to 8 hours of sleep, maintain proper weight, eat breakfast, and do not eat between meals. In how many ways can a person adopt 5 of these rules to follow (a) if the person presently violates 4 of the 7 rules? (b) if the person always gets between 7 and 8 hours of sleep? (a) There are ways. (b) There are ways.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
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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
Transcribed Image Text:A study concluded that following 7 simple health rules can extend a man's life by 11 years on the average and
a woman's life by 7 years. These 7 rules are as follows: no smoking, get regular exercise, use alcohol only
in moderation, get 7 to 8 hours of sleep, maintain proper weight, eat breakfast, and do not eat between meals. In how
many ways can a person adopt 5 of these rules to follow
(a) if the person presently violates 4 of the 7 rules?
(b) if the person always gets between 7 and 8 hours of sleep?
(a) There are
ways.
(b) There are
ways.
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