her or not the table is a probability distribution ôf å discrete random variable. Explain fully a. Yes/ Not -2 0.3 4 0.4 0.2 0.1 b. Yes/ Not 3 4 (x) -0.25 0.5 0.35 0.10 0.30 2/3
her or not the table is a probability distribution ôf å discrete random variable. Explain fully a. Yes/ Not -2 0.3 4 0.4 0.2 0.1 b. Yes/ Not 3 4 (x) -0.25 0.5 0.35 0.10 0.30 2/3
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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Transcribed Image Text:3. Determine whether or not the table is a valid probability distribution of a discrete
random variable. Explain fully
(2)
a. Yes / Not
-2
4
f (x)
0.3
0.4
0.2
0.1
b. Yes / Not
2.
4
f (x)
-0.25
0.5
0.35
0.10
0.30
4. A discrete random variable X: no of push ups made by a newly cadet in one attempt
has the following probability distribution:
(2)
77
0.15
78
0.31
79
0.49
80
0.87
81
P(X < x)
The probability that a cadet will make at least 79 push ups in one attempt is equal to
a. 0.31
b. 0.69
1
c. 0.85
d. 0.51
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