If a list of 20 individuals who volunteered to supply blood, when it is needed for transfusion, has 15 individuals of type B blood and 3 individuals are selected random from the list, what is the probability that A)all three will be type B; b) 2 will be of type B and 1 will not; c)at least 1 will be of type B?
If a list of 20 individuals who volunteered to supply blood, when it is needed for transfusion, has 15 individuals of type B blood and 3 individuals are selected random from the list, what is the probability that A)all three will be type B; b) 2 will be of type B and 1 will not; c)at least 1 will be of type B?
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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If a list of 20 individuals who volunteered to supply blood, when it is needed for transfusion, has 15 individuals of type B blood and 3 individuals are selected random from the list, what is the probability that
A)all three will be type B;
b) 2 will be of type B and 1 will not;
c)at least 1 will be of type B?
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