n a big university with over 10,000 students, 20% of all students work full time. A random sample of 100 students is selected from the university. Let X denote the number of students who work full time in the sample. b) Find ?(? = 20) c) Find ?(? ≤ 20) d) Find ?(? ≥ 20) Can you explain how you got them using work?
n a big university with over 10,000 students, 20% of all students work full time. A random sample of 100 students is selected from the university. Let X denote the number of students who work full time in the sample. b) Find ?(? = 20) c) Find ?(? ≤ 20) d) Find ?(? ≥ 20) Can you explain how you got them using work?
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
-
n a big university with over 10,000 students, 20% of all students work full time. A random sample of 100
students is selected from the university. Let X denote the number of students who work full time in the sample.
- b) Find ?(? = 20)
-
c) Find ?(? ≤ 20)
-
d) Find ?(? ≥ 20)
Can you explain how you got them using work?
Expert Solution
Step 1
Given :
n = 100
p = 0.20
q = 1 - p
= 1 - 0.20 = 0.80
Apply binomial distribution :
P(X=x) =
Step by step
Solved in 4 steps
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