n people drop their cell phones in a box, then randomly pick their cell phone byputting their hands in the box. Let X be the random variable representing thenumber of people pulling their cell phones right:a.What is the average value of the random variable X if we know that the firstperson to draw is the correct one? What is the variance?b.lf we know that 2 people from the first (n-1) people picked up the phonecorrectly, what is the average of the nth person picking up the phonecorrectly?

The following solution is given below :

Answered: n people drop their cell phones in a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Please choose the correct answer. A box has red marbles, 3 black marbles and 5 blue marbles. A marble is picked at random. what is the total number of possible outcomes? A. 2 B. 3 C. 5 D. 10 8. How would you interpret a very small variance or standard deviation? A. The values of the random variables are equal to the mean. B. The values of the random variable are farther from the mean. C. The values of the random variable are closer to the mean. D. The values of the random variables have no relationship with the mean.
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