1. If two coins are tossed, which is NOT a possible value of the random variable for the number of tails? A. 0 В. 1 С. 2 D. 3
1. If two coins are tossed, which is NOT a possible value of the random variable for the number of tails? A. 0 В. 1 С. 2 D. 3
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 numbers 1-4

Transcribed Image Text:II. MULTIPLE CHOICE. Read and analyze the questions, then write the letter that corresponds to your
answer on the space provided before each number. Use UPPERCASE letters. Write E if the answer is not
among the choices.
1. If two coins are tossed, which is NOT a possible value of the random variable for the number of
tails?
A. 0
В. 1
С. 2
D. 3
2. If P(X) =, what are the possible values of X for it to be a probability distribution?
A. 1,1, 2
В. 2, 3, 4
С. 1, 2, 3
D. 0, 2,3
For numbers 3-5, refer to the probability distribution below.
2
4
6.
8.
P(X)
1
1
1
1
k
6.
3. What should be the value of k to complete the probability distribution?
A. 0
c.
D.
B.
4. What is the mean of the probability distribution?
А. 1
В. 2.5
C. 3.5
D. 4
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