4. The age distribution of students at a community college is given below: Age (years) Number of students Midpoint Probability Under 21 150 18.5 21-25 300 26-30 200 31-35 100 Over 35 50 42.5 Total 800 Find the midpoint of each class, (18.5 for the first class and 42.5 for the last class are given to you). The use the midpoint to: a. Compute the expected age for a community college student on this campus. Ans. b. Determine the standard deviation for this population. Ans.

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
4.
The age distribution of students at a community college is given below:
Age (years)
Number of students
Midpoint
Probability
Under 21
150
18.5
21-25
300
26-30
200
31-35
100
Over 35
50
42.5
Total
800
Find the midpoint of each class, (18.5 for the first class and 42.5 for the last class are given to you). The use the
midpoint to:
a. Compute the expected age for a community college student on this campus.
Ans.
b. Determine the standard deviation for this population.
Ans.
Transcribed Image Text:4. The age distribution of students at a community college is given below: Age (years) Number of students Midpoint Probability Under 21 150 18.5 21-25 300 26-30 200 31-35 100 Over 35 50 42.5 Total 800 Find the midpoint of each class, (18.5 for the first class and 42.5 for the last class are given to you). The use the midpoint to: a. Compute the expected age for a community college student on this campus. Ans. b. Determine the standard deviation for this population. Ans.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar 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