39. Use this information to answer questions 39-40. The owner of a used car lot estimates that 50% of the cars on his lot are worth about $2500, 25% are worth about $5000, 10% are worth about $ 10,000, and the rest are worth about $ 15,000. He is running a sweepstakes in which the winner blindly draws a key to one of these cars from a fishbowl and gets to keep the car that matches that key. What is the expected value of the prize car? A. $2,500 B. $5,750 C. $8,125 D. $15,000 40. What is the standard deviation? A. $20,062,500 B. $5,750 C. $4479.12 D. $12,500

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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I understand this is two questions so is it okay if I ask both here and you dock two questions from my total? They are attached.

39. Use this information to answer questions 39-40.
The owner of a used car lot estimates that 50% of the cars on his lot are worth
about $2500, 25% are worth about $5000, 10% are worth about $10,000,
and the rest are worth about $ 15,000. He is running a sweepstakes in which the
winner blindly draws a key to one of these cars from a fishbowl and gets to keep
the car that matches that key.
What is the expected value of the prize car?
A. $2,500
B. $5,750
C. $8,125
D. $15,000
40. What is the standard deviation?
A. $20,062,500
B. $5,750
C. $4479.12
D. $12,500
Transcribed Image Text:39. Use this information to answer questions 39-40. The owner of a used car lot estimates that 50% of the cars on his lot are worth about $2500, 25% are worth about $5000, 10% are worth about $10,000, and the rest are worth about $ 15,000. He is running a sweepstakes in which the winner blindly draws a key to one of these cars from a fishbowl and gets to keep the car that matches that key. What is the expected value of the prize car? A. $2,500 B. $5,750 C. $8,125 D. $15,000 40. What is the standard deviation? A. $20,062,500 B. $5,750 C. $4479.12 D. $12,500
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