Answered: 30 23 58 28 35 67 27 42 46 35 51 30 18…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

30 23 58 28 35 67 27 42 46 35

51 30 18 33 25 38 48 36 31 39

a. Construct a grouped frequency distribution table using an interval width of 10. Include columns for frequency, percentage, cumulative frequency, and cumulative percentage.

b. Construct a stem and leaf display.

Expert Solution

Step 1

Arrange the all observations in ascending order

18, 23, 25, 27, 28, 30, 30, 31, 33, 35, 36, 38, 39, 42, 46, 51, 58, 67

Minimum= 18

Width= 10

We want to find frequency distribution

Class interval	Frequency	percentage	cumulative Frequency	cumulative percentage
18-28	4	4/18*100=0.22	4	0.22
28-38	8	0.44	12	0.66
38-48	3	0.17	15	0.83
48-58	2	0.11	17	0.94
58-68	1	0.06	18	1
Total	18	1

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