The random variable X represents the number of tests that a patient entering a hospital has. Find the mean and standard deviation for the random variable X from the following probability distribution. x pr(x) 0 0.18 1 0.29 2 0.35 3 0.12 4 0.06 Select one: a.mean: 3.72; standard deviation: 2.52 b.mean: 1.59; standard deviation: 1.10 c.mean: 2.52; standard deviation: 1.93 d.mean: 1.59; standard deviation: 3.72

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

The random variable X represents the number of tests that a patient entering a hospital has. Find the mean and standard deviation for the random variable X from the following probability distribution.


x pr(x)
0 0.18
1 0.29
2 0.35
3 0.12
4 0.06


Select one:
a.mean: 3.72; standard deviation: 2.52
b.mean: 1.59; standard deviation: 1.10
c.mean: 2.52; standard deviation: 1.93
d.mean: 1.59; standard deviation: 3.72
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman