12 What is the probability distribution for the number of tails? 了「3 AX1/8 3/6 3/61/6 B. D. FIX

A First Course in Probability (10th Edition)
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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 12

12 What is the probability distribution for the number of taila?
AXI1/83/8 3/8T1/6
B.
D.
1877
FX
Transcribed Image Text:12 What is the probability distribution for the number of taila? AXI1/83/8 3/8T1/6 B. D. 1877 FX
А. I, I,
10. In a recent little league softball game, each player went to bat 4 times. The
number of hits made by each player is described by the following probability
distribution. What is the mean of the probability distribution?
Number of hits, x
Probability, P(X)
3.
0.25
2.
4
0.10
0.20
0.30
0.15
A. 1.00
В. 1.75
С. 2.00
D. 2.15
For numbers 11-13, refer to the problem below.
Suppose three coins are tossed. Let X be the random variable representing
the number of tails that occur.
11. What are the possible values of the random variable X?
B. 1, 5, 7,9
A. 0, 2, 4, 6
C. 0, 1, 2, 3
D. 5, 6, 7, 8
Transcribed Image Text:А. I, I, 10. In a recent little league softball game, each player went to bat 4 times. The number of hits made by each player is described by the following probability distribution. What is the mean of the probability distribution? Number of hits, x Probability, P(X) 3. 0.25 2. 4 0.10 0.20 0.30 0.15 A. 1.00 В. 1.75 С. 2.00 D. 2.15 For numbers 11-13, refer to the problem below. Suppose three coins are tossed. Let X be the random variable representing the number of tails that occur. 11. What are the possible values of the random variable X? B. 1, 5, 7,9 A. 0, 2, 4, 6 C. 0, 1, 2, 3 D. 5, 6, 7, 8
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