4. What are the standard deviation and variance of the variable "age"? 5. Construct a relative frequency / cumulative relative frequency table (with no grouping). 6. Construct a relative frequency histogram of the data set (with no grouping).
4. What are the standard deviation and variance of the variable "age"? 5. Construct a relative frequency / cumulative relative frequency table (with no grouping). 6. Construct a relative frequency histogram of the data set (with no grouping).
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
I need help with 4,5,6 please..
![The ages (in years) for a simple random sample of students from a large college are as follows:
20, 18, 20, 18, 19, 18, 21, 19
1. What proportion of the students in the sample are 19 years old or younger [ i.e. Pr(Y ≤ 19)] ?
2. Of the students in the sample who are 19 years old or older, what proportion are 20 years
old or younger [i.e. Pr(Y≤ 20 | Y³ 19)] ?
3. What are the mean and median age (in years) for the students in the sample?
4. What are the standard deviation and variance of the variable "age"?
5. Construct a relative frequency / cumulative relative frequency table (with no grouping).
6. Construct a relative frequency histogram of the data set (with no grouping).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2eeefdca-2299-478c-a067-a4ff3074cb33%2Fa831931f-1304-4981-a5cb-fecbc97b7bf5%2Fjg0eyko_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The ages (in years) for a simple random sample of students from a large college are as follows:
20, 18, 20, 18, 19, 18, 21, 19
1. What proportion of the students in the sample are 19 years old or younger [ i.e. Pr(Y ≤ 19)] ?
2. Of the students in the sample who are 19 years old or older, what proportion are 20 years
old or younger [i.e. Pr(Y≤ 20 | Y³ 19)] ?
3. What are the mean and median age (in years) for the students in the sample?
4. What are the standard deviation and variance of the variable "age"?
5. Construct a relative frequency / cumulative relative frequency table (with no grouping).
6. Construct a relative frequency histogram of the data set (with no grouping).
Expert Solution
Step 1
Given:
| Ages, X |
| 20 |
| 18 |
| 20 |
| 18 |
| 19 |
| 18 |
| 21 |
| 19 |
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman