Suppose that the probability distribution for the number of years it takes to earn a Bachelor of Science (BSc) degree is given below: 3 4 5 X P(X=x) 0.05 0.4 0.3 0.15 6 0.1 7
Suppose that the probability distribution for the number of years it takes to earn a Bachelor of Science (BSc) degree is given below: 3 4 5 X P(X=x) 0.05 0.4 0.3 0.15 6 0.1 7
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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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:QUESTION 2
a) Suppose that the probability distribution for the number of years it takes to earn a
Bachelor of Science (BSc) degree is given below:
3
5
i)
ii)
X
P(X=x)
SSTS011 MAY
0.05
0.4
0.3
0.15
6
0.1
7
VAL
Define the Random Variable X in words.
What does it mean that the values 0, 1, and 2 are not included for X on the
probability distribution table?
On average, how many years do you expect it to take for an individual to earn
a BSc degree?
iv) What is the variance for the random variable X?
omined and the results were
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