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38. A bag contains 5 white balls and 13 black balls. You pay $2 to pick 2 balls at random from the bag. You win $10 if you do not pick a white ball. What is the expected value of your winnings in this game? A) 300 51 B) 122 305 D) 53 51 E) None of the above.

38. A bag contains 5 white balls and 13 black balls. You pay $2 to pick 2 balls at random from the bag. You win $10 if you do not pick a white ball. What is the expected value of your winnings in this game? A) 300 51 B) 122 305 D) 53 51 E) None of the above.

MATLAB: An Introduction with Applications
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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39. A bag contains 2 white balls and 8 black balls. You pay $1 to pick 2 balls at random from the bag. You win $5 if you do not pick a white ball. What is the variance of your winnings in this game? A) (4-2)² (56)+(-1-)²() 2 B) (5-) ()+(0-2) ² (3) C) (5-2)² (56)+(-1-25) ² (3) D) 0 E) None of the above.
Transcribed Image Text:39. A bag contains 2 white balls and 8 black balls. You pay $1 to pick 2 balls at random from the bag. You win $5 if you do not pick a white ball. What is the variance of your winnings in this game? A) (4-2)² (56)+(-1-)²() 2 B) (5-) ()+(0-2) ² (3) C) (5-2)² (56)+(-1-25) ² (3) D) 0 E) None of the above.
38. A bag contains 5 white balls and 13 black balls. You pay $2 to pick 2 balls at random from the bag. You win $10 if you do not pick a white ball. What is the expected value of your winnings in this game? A) B) 306 51 122 305 D) 158 51 53 51 E) None of the above.
Transcribed Image Text:38. A bag contains 5 white balls and 13 black balls. You pay $2 to pick 2 balls at random from the bag. You win $10 if you do not pick a white ball. What is the expected value of your winnings in this game? A) B) 306 51 122 305 D) 158 51 53 51 E) None of the above.
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