Direction: Write the letter of the correct answer before each number. Use separate sheet for your solutions. 1. This is the central value or average of the probability mass function of a discrete random variable. a. Mean b. Variance c. Standard Deviation d. Probability 2. It describes the how spread the scores are from the central value of the discrete random variable. a. Mean b. Variance c. Probability d. Variable
Direction: Write the letter of the correct answer before each number. Use separate sheet for your solutions. 1. This is the central value or average of the probability mass function of a discrete random variable. a. Mean b. Variance c. Standard Deviation d. Probability 2. It describes the how spread the scores are from the central value of the discrete random variable. a. Mean b. Variance c. Probability d. Variable
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
Transcribed Image Text:Name:
Score:
Grade and Section:
Date:
Direction: Write the letter of the correct answer before each number. Use separate sheet for your
solutions.
1. This is the central value or average of the probability mass function of a discrete random
variable.
а. Меan
b. Variance
2. It describes the how spread the scores are from the central value of the discrete random
c. Standard Deviation
d. Probability
variable.
a. Mean
b. Variance
c. Probability
d. Variable
3. How to get the standard deviation from the computed variance?
a. Square the variance
b. Twice the value of variance
For numbers 4-15, refer to the table below. Complete the table showing the probability mass
function representing the number of food items customers of Aling Tess Sari-Sari Store will buy.
Number of
Items (X)
Probability
(Р(Х)
Х-Р(X)
c. Add the variance and the mean
d. Get the square root of variance
1
3
4
5
1/5
4/15
1/15
1/3
2/15
4.
5.
6.
7.
8.
9. From the given table, what is the mean (p) of the probability distribution?
b. 2.93
а. 2.80
с. 3.93
d. 3.80
10. How do you interpret the result of the mean of the probability distribution?
a. The average number of items customers will buy in Aling Tess Sari-Sari store is 2.
b. The average number of items customers will buy in Aling Tess Sari-Sari store is 3.
c. The average number of items customers will buy in Aling Tess Sari-Sari store is 4.
d. The average number of items customers will buy in Aling Tess Sari-Sari store is 5.
Compute for the variance and standard deviation of the given probability distribution above.
Number of
Items (X)
X- u
1
3
4
11.
16/15
-29/15
-14/15
31/15
(X-H)
1/225
3.74
12.
13.
4.27
(X-H)•
P(X)
14. What is the variance of the probability mass function?
0.748
0.167
1/1125
1.52
2.85
a. 5.13
b. 5.38
c. 5.29
d. 5.43
15. What is the standard deviation?
a. 2.26
b. 2.32
c. 2.30
d. 2.33
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
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