3-83 only please previous part? Exp3-82. + The probability of an opemeric data incorrectly into a field in a database is equ.The random variable X is the number of fields on a data entryform with 28 fields that have an error. Is X a discrete uniformrandom variable? Why or why not?3-83. + Suppose that X has a discrete uniform distributionon the integers 0 through 9. Determine the mean, variance,and standard deviation of the random variable Y = 5X andcompare to the corresponding results for X.3-84. Show that for a discrete uniform random variable X , if eachof the values in the range of X is multiplied by the constant c, theeffect is to multiply the mean of X by c and the variance of X by c.That is, show that E(cX)=cE(X) and V(cX)=c³v(x).3-85. The number of pages in a PDF document you create hasa discrete uniform distribution from five to nine pages (includ-ing the end points). What are the mean and standard deviationthe number of pages in the document?16,thecrs aren of thered to theormly dis-ming at%3DDose that nine-digit Social Security numbers areIf you randomly select a number, what isngs to one of the 300 million peopleielephone numbersis the prob-17%

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-82. + meric data incorrectly The random variable X is the number form with 28 fields that have an error. Is X a dise random variable? Why or why not? 3-83. + Suppose that X has a discrete uniform distribution on the integers 0 through 9. Determine the mean, variance, and standard deviation of the random variable Y = 5X and compare to the corresponding results for X. 3-84. Show that for a discrete uniform random variable X , if each yalues in the range of X is multiplied by the constant c, the he nhiply the mean of X by c and the variance of X byc. Y)= cE(X) and V (cx)=c°V(X). PDF document you create has nine pages (includ- lord deviation to

-82. + meric data incorrectly The random variable X is the number form with 28 fields that have an error. Is X a dise random variable? Why or why not? 3-83. + Suppose that X has a discrete uniform distribution on the integers 0 through 9. Determine the mean, variance, and standard deviation of the random variable Y = 5X and compare to the corresponding results for X. 3-84. Show that for a discrete uniform random variable X , if each yalues in the range of X is multiplied by the constant c, the he nhiply the mean of X by c and the variance of X byc. Y)= cE(X) and V (cx)=c°V(X). PDF document you create has nine pages (includ- lord deviation to

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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