1917694A learn-us-east-1-prod-fleet01-xythos.s3.amazonaws.com/5f3731704cfb1/1917694?response-cache-control=private%2C%20max-age%3D21600&response.. ☆E1. In class, we showed that for a Poisson distribution X with parameter A, the mean is X.You will do a similar process here to show E[X²] = X + X². This means that Var[X] =E[X²] – (E[X])² = 1+ x² – x² = A.To do this, we need to show E[X²] =k?P[X = k] =>= 1+X. Part wayk!k=0k=0人k-1into the proof, you will need the following in the middle:(k – 1)!:-1)(k – 1)!k=1k=1(k – 1)!"2. The number of cookies sold at a bakery each day follows a Poisson distribution with mean7.2.(a) What is the probability that the bakery sells fewer than five cookies in a day?(b) What is the probability that the bakery sells exactly twelve cookies over two days?(c) What is the variance of the number of cookies sold in a seven-day week?3. B-mobile has in stock 6 y-Phones and 5 Galacies. Four people come to B-mobile to purchasea phone. They will choose their phone at random.(a) What is the probability that exactly three y-Phones are sold?(b) What is the expected number of y-Phones sold?(c) What is the variance of the number of y-Phones sold?4. Jordan is practicing field goals. On each attempt, ze have a 0.35 chance of making it. Let Xbe the number of attempts ze needs to make five successful attempts.10:08 AMO Type here to searchHW #6 PT - ..O My Question..O Answered: A ..O 1917694 - G...W11/3/2020...

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1. In class, we showed that for a Poisson distribution X with parameter d, the mean is A. You will do a similar process here to show E[X] =+X?. This means that Var[X] = E[X*] - (E[X])? = 2- = 1. To do this, we need to show E[X) = E²P[X = k] = .e- = A+X?. Part way k! k-0 k-0 Aペ-1 into the proof, you will need the following in the middle: k (k – 1)! k-1)T- 1)! k=1 k=1 入ペ-1 Σ (k – 1)! kl

1. In class, we showed that for a Poisson distribution X with parameter d, the mean is A. You will do a similar process here to show E[X] =+X?. This means that Var[X] = E[X*] - (E[X])? = 2- = 1. To do this, we need to show E[X) = E²P[X = k] = .e- = A+X?. Part way k! k-0 k-0 Aペ-1 into the proof, you will need the following in the middle: k (k – 1)! k-1)T- 1)! k=1 k=1 入ペ-1 Σ (k – 1)! kl

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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