3. Which of the following is the expected value of the variable x? B. Median A Mean C. Mode D. Variance

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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Answer number 3

1. Which of the following is a discrete random variable?
A. Average weight of female athletes.
B. Average amount of electricity consumed.
C Number of suspected cases of COVID-19.
D. Amount of paint used in repainting a building.
2. Which of the following represents a probability distribution?
A.
с.
2.
3
PIX) 0.38 0.36 0.30 0 12
D.
PIX) 0.35 0.31 0 22 0. 12
2.
4.
2.
4.
6.
PIX)
1/6 3/6 2/6
1/6
P(X) 1/3 4/3 2/3
1/3
3. Which of the following is the expected value of the variable x?
B. Median
С. Mode
D. Variance
A Mean
B.
Transcribed Image Text:1. Which of the following is a discrete random variable? A. Average weight of female athletes. B. Average amount of electricity consumed. C Number of suspected cases of COVID-19. D. Amount of paint used in repainting a building. 2. Which of the following represents a probability distribution? A. с. 2. 3 PIX) 0.38 0.36 0.30 0 12 D. PIX) 0.35 0.31 0 22 0. 12 2. 4. 2. 4. 6. PIX) 1/6 3/6 2/6 1/6 P(X) 1/3 4/3 2/3 1/3 3. Which of the following is the expected value of the variable x? B. Median С. Mode D. Variance A Mean B.
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