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?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 23PFA
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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