Q4. A bag contains 9 white and one black ball. Three of them are taken out at a time from the bag. Find the probability that all balls taken out are white.
Q4. A bag contains 9 white and one black ball. Three of them are taken out at a time from the bag. Find the probability that all balls taken out are white.
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:Q4.
A bag contains 9 white and one black ball. Three of them are taken out at a time from the bag.
Find the probability that all balls taken out are white.
Q5.
There are two winning tickets among ten tickets available. Determine the probability that (i) one
or both of these tickets will be winning among five tickets selected at random.
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