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Jenny, a probability student, having seen Example 2.6 and

Fundamentals of Probability, with Stochastic Processes | 3rd Edition | ISBN: 9780131453401 | Authors: Saeed Ghahramani ISBN: 9780131453401 223

Solution for problem 20 Chapter 2.2

Fundamentals of Probability, with Stochastic Processes | 3rd Edition

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Fundamentals of Probability, with Stochastic Processes | 3rd Edition | ISBN: 9780131453401 | Authors: Saeed Ghahramani

Fundamentals of Probability, with Stochastic Processes | 3rd Edition

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Problem 20

Jenny, a probability student, having seen Example 2.6 and its solution, becomes convinced that it is a nearly even bet that someone among the next 22 people she meets randomly will have the same birthday as she does. What is the fallacy in Jennys thinking? What is the minimum number of people that Jenny must meet before the chances are better than even that someone shares her birthday?

Step-by-Step Solution:
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# 9.26 # Variable selection (step wise selection) (Ch6) data=read.csv(file.choose()) data=data[-1] # x1:x7 are quantative factors # We will try to use all 7 independent varibales (predictors) to predict y (exclude the first column) m1=lm(y~.,data) # m1 is not adequate to predict y # Before fitting regression, check correlations first cor.test(data[,2], data[,3])$p.value cor.test(data[,2], data[,4])$p.value cor.test(data[,2], data[,5])$p.value cor.test(data[,2], data[,6])$p.value cor.test(data[,2], data[,7])$p.value # non is significant # try to apply coding procedure to minimize the standard error # create a new matrix and store the coding procedure variables data1=matrix(0,nrow(data), 8) for (j in 2:9){ data1[,j-1]=(data[,j]-mean(data[,j]))/sd(data[,j])

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Chapter 2.2, Problem 20 is Solved
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Textbook: Fundamentals of Probability, with Stochastic Processes
Edition: 3
Author: Saeed Ghahramani
ISBN: 9780131453401

The answer to “Jenny, a probability student, having seen Example 2.6 and its solution, becomes convinced that it is a nearly even bet that someone among the next 22 people she meets randomly will have the same birthday as she does. What is the fallacy in Jennys thinking? What is the minimum number of people that Jenny must meet before the chances are better than even that someone shares her birthday?” is broken down into a number of easy to follow steps, and 68 words. Fundamentals of Probability, with Stochastic Processes was written by and is associated to the ISBN: 9780131453401. This full solution covers the following key subjects: . This expansive textbook survival guide covers 59 chapters, and 1142 solutions. This textbook survival guide was created for the textbook: Fundamentals of Probability, with Stochastic Processes, edition: 3. Since the solution to 20 from 2.2 chapter was answered, more than 322 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 20 from chapter: 2.2 was answered by , our top Statistics solution expert on 01/05/18, 06:24PM.

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Jenny, a probability student, having seen Example 2.6 and