Which of the two variables, the time spent by male children or the time spent by female children, has a larger dispersion? Explain the answer by using an appropriate measure that can compare dispersions between variables
Which of the two variables, the time spent by male children or the time spent by female children, has a larger dispersion? Explain the answer by using an appropriate measure that can compare dispersions between variables
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
Which of the two variables, the time spent by male children or the time spent by female children, has a larger dispersion?
Explain the answer by using an appropriate measure that can compare dispersions between variables

Transcribed Image Text:The table below summarises data collected from male and female children about the time they spent
on reading per week (X, in hours/week).
Male
Female
All
Sample size
20
22
? 42
Sum
values
?
?
(i)
of X Sum of X²
values
8,648
17,352
(ii) 26000
Mean
19.9
27
? 46.9
Standard
Deviation
6.19
7.91
? 14.1
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