(a) Find the probability that a randomly selected student did not hold a job in the past year. (b) Find the probability that a randomly selected student held two or fewer jobs in the past year. (c) Find the probability that a randomly selected student held at least one job during the past year. (d) Find the expected number of jobs that students held within the past year.
(a) Find the probability that a randomly selected student did not hold a job in the past year. (b) Find the probability that a randomly selected student held two or fewer jobs in the past year. (c) Find the probability that a randomly selected student held at least one job during the past year. (d) Find the expected number of jobs that students held within the past year.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![54. Suppose the probability distribution for X = number of jobs held during the past year for students
at a school is as given in the following table.
No. of Jobs
1 2 ul
3 o 4
Probability
???
0.37
0.29
0.15
0.05
(a) Find the probability that a randomly selected student did not hold a job in the past year.
(b) Find the probability that a randomly selected student held two or fewer jobs in the past
year.
(c) Find the probability that a randomly selected student held at least one job during the past
year.
(d) Find the expected number of jobs that students held within the past year.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fad479a3a-d4b6-4930-95be-d59fbe47aac3%2Fb3f5d6c7-7125-4469-9220-b34216b13479%2F97w1io8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:54. Suppose the probability distribution for X = number of jobs held during the past year for students
at a school is as given in the following table.
No. of Jobs
1 2 ul
3 o 4
Probability
???
0.37
0.29
0.15
0.05
(a) Find the probability that a randomly selected student did not hold a job in the past year.
(b) Find the probability that a randomly selected student held two or fewer jobs in the past
year.
(c) Find the probability that a randomly selected student held at least one job during the past
year.
(d) Find the expected number of jobs that students held within the past year.
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