7.A family that is known to have two children is selected at randomfrom amongst all families with two children. Find the probability thatboth children are boys, given that there is a boy in this family.8.A die is tossed. Find P(less than5|even).

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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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7. A family that is known to have two children is selected at random from amongst all families with two children. Find the probability that both children are boys, given that there is a boy in this family. 8. A die is tossed. Find P(less than5|even).