24. An urn contains b blue balls and r red balls. They are removed at random and not replaced. Showthat the probability that the first red ball drawn is the (k + 1)th ball drawn equals (+b-k-¹)/(r+b).Find the probability that the last ball drawn is red.

Given:- The probability that the first red ball is drawn at (k +1)th the ball drawn =…

Answered: 24. An urn contains b blue balls and r…

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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24. An urn contains b blue balls and r red balls. They are removed at random and not replaced. Show that the probability that the first red ball drawn is the (k+ 1)th ball drawn equals (+b-k-¹)/(+b). r-1 Find the probability that the last ball drawn is red.