Α. Σ Ρ/Χ)-1 B. E P(X) 1/10 C. Σ Ρ(Χ)-0 D.Σ Ρ(X) = 10 The probability of each value of the random variable must be A. between or equal to 0 and 1 B. greater than 1 C. between 1 and 2 D. greater than 2 Which of the following can serve as the values of a probability distribution? A. P(1) = 0.42, P2) = 0.31, P(3)= 0.37 B. P(1) = 9/14, P2) = 5/14, P(3)3D 1/14 С. Р(1) - 0.08, Р2)- 0.12, Р(3)- 0.83 D. P(1) = 10/33, P2) = 1/3, P(3)= 12/33 %3D %3D %3D
Α. Σ Ρ/Χ)-1 B. E P(X) 1/10 C. Σ Ρ(Χ)-0 D.Σ Ρ(X) = 10 The probability of each value of the random variable must be A. between or equal to 0 and 1 B. greater than 1 C. between 1 and 2 D. greater than 2 Which of the following can serve as the values of a probability distribution? A. P(1) = 0.42, P2) = 0.31, P(3)= 0.37 B. P(1) = 9/14, P2) = 5/14, P(3)3D 1/14 С. Р(1) - 0.08, Р2)- 0.12, Р(3)- 0.83 D. P(1) = 10/33, P2) = 1/3, P(3)= 12/33 %3D %3D %3D
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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Transcribed Image Text:7. What is the sum of the probabilities of all values of the random variable?
A. ΣΡΧ) -1
B. E P(X) = 1/10
C. Σ Ρ(Χ)-0
D. E P(X) = 10
8. The probability of each value of the random variable must be
A. between or equal to 0 and 1
B. greater than 1
C. between 1 and 2
D. greater than 2
9. Which of the following can serve as the values of a probability distribution?
A. P(1) = 0.42, P2) = 0.31, P(3)= 0.37
B. P(1) = 9/14, P2) = 5/14, P(3)= 1/14
C. P(1) = 0.08, P2) = 0.12, P(3)= 0.83
D. P(1) = 10/33, P2) = 1/3, P(3)= 12/33
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Transcribed Image Text:ôf fémale athletes
4. Which of the following is a continuous random variable?
A. the number of book in the library
B. the number of votes in an election
C. the number of eggs in the basket
D. the lifetime in hours of 15 flashlights
5. It is a function that associates a real number to each element in the sample space. It is a variable
whose values are determined by chance.
A. Random Experiment
B. Random Sample
C. Random Variable
D. Random process
6. You decide to conduct a survey of families with two children. You are interested in counting the
number of girls (out of 2 children) in each family. Is this a random variable and if it is, what are the
possible values?
A. Yes, it is a random variable and its value can be 1 or 2.
B. Yes, it is a random variable and its value can be 0, 1 or 2.
C. Yes, it is a random variable and its value can be 2 or 4.
D. No, it is not a random variable since it is not random.
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