19With the usual notations, find p for a binomial random variable Xif n = 6, and if 9 P (X = 4) = P (X = 2)%3D

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Answered: 19 With the usual notations, find p for…

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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2. Let x be a binomial random variable with n=20 and p=.3. Which of the following gives p(x = 13)? • (a) Use binomial table for n=20, p=0.3, and k = 13 • (b) Use binomial table for n=20, p=0.3, and k = 12 • (c) Subtract (b) from (a), i.e. p(x= 13) = p(x ≤ 13) – p(x ≤ 12) PLEASE SHOW ME HOW TO DO IT SO I CAN LEARN IT?
The more people with COVID, the more staff you need in the ER. Let’s say approximately 5% percent of patients are coming in COVID positive. Assume that the ER will see 145 people today. Use =BINOMDIST() to determine binomial probabilities that the health department will see no one with COVID today, 1 woman with COVID, 2 women with COVID and so on, up to 21 women with COVID.
3.Suppose that X and Y are independent random variables for which Var(X)=Var(Y)=3. Find the values of (a) Var(X-Y); (b) Var(2X-3Y+1).
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19 With the usual notations, find p for a binomial random variable X if n = 6, and if 9 P ( X = 4) = P (X = 2) %3D