Answered: Practice question #6 Consider two…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

Practice question #6

Consider two samples of data. For each sample, we have the normal probability plots graphed below (where the sample values are the y-values and theoretical normal scores are the x-values). Which of the two samples are more likely to be from a population with a normal distribution? Explain why.

Sample Quantiles
7
9
5
4
3
2
Normal Probability Plot for Sample #1
oooooooo nga sa mnom 000000⁰⁰0
-2
0
Theoretical Quantiles
1
2
Sample Quantiles
100
80
60
40
20
0
O
Normal Probability Plot for Sample #2
0 000
-2
-1
0
Theoretical Quantiles
0000000000
2

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution