Can you solve this problem? A man and his wife appear in an interview...
A man and his wife appear in an interview for two vacancies in the same post. The probability of husband's selection is 1/7 and the probability of wife's selection is 1/5. What is the probability that only one of them is selected?
Option: a. 4/5 b. 2/7 c. 8/15 d. 4/7
For each vacancy:
Probability of husband getting the post: 1/7
P husband NOT getting the post: 6/7
P wife getting the post: 1/5
P wife not getting the post: 4/5
Now consider P husband and not wife + P wife and not husband. Take 2x since there are 2 posts:
2(1/7)(4/5) + 2(1/5)(6/7) = 4/7
well, you have to specify whether the events are independent or not. it could be that the agency has a secret policy not to hire two married people, or to hire married couples. that effects the outcome.
if they are independent then it is just (1/7)(4/5) + (1/5)(6/7) = 10/35 = 2/7
by ngureco4 months ago
Why Do Wives Get Mad With Husbands Watching Porn? How Does It Interfere With Marriage?
by tqr0078 years ago
A coin is tossed on 5 occasions .What is the probability that a head will appear on all 5 occasions
by Abhaque Supanjang6 years ago
How do you put a problem into the first priority to solve, if you face some at once ?In examplification, someday you are faced to some problems with your friends, boss, environment, and so forth which are coming at the...
by Abhaque Supanjang3 years ago
What do you do to solve some problems which come to you at the same time ?Everybody must have problems. Everyone of us is given problems suitable to our ability to bear them. How do you deal with all problems in your...
by Susan Ng Yu14 months ago
What should a wife do if her otherwise good husband is consistently unable to satisfy her sexually?
by Iamsam5 years ago
Can you solve this problem? The total number of undergraduate students...in a college is 270. If 2/3 of the number of students in the Science Stream is same as 3/4 of the number of students in the Arts...
Copyright © 2018 HubPages Inc. and respective owners.
Other product and company names shown may be trademarks of their respective owners.
HubPages® is a registered Service Mark of HubPages, Inc.
HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.