MEASURES OF VARIABILITY Class Interval 65-69 70-74 75-79 80-84 85-89 90-94 95-99 =? f 2 8 =? 10 9 7 2 2 Range= HCB-LCB n= X fx X Mean Deviation= { flx-x| n =? Variance= [ f(x-x)^2 n (X-X) Ix-x| flx-x| (x-x)^2 f(x-x)^2 Standard Deviation=✔ V =?
MEASURES OF VARIABILITY Class Interval 65-69 70-74 75-79 80-84 85-89 90-94 95-99 =? f 2 8 =? 10 9 7 2 2 Range= HCB-LCB n= X fx X Mean Deviation= { flx-x| n =? Variance= [ f(x-x)^2 n (X-X) Ix-x| flx-x| (x-x)^2 f(x-x)^2 Standard Deviation=✔ V =?
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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Transcribed Image Text:MEASURES OF VARIABILITY
Class
Interval
65-69
70-74
75-79
80-84
85-89
90-94
95-99
i=
=?
fx fx X (x-x) Ix-x|
2
8
=?
10
9
7
2
2
Range= HCB-LCB
n=
Mean Deviation= { flx-xl
n
=?
Variance= [ f(x-x)^2
n
flx-xl (x-x)^2 f(x-x)^2
Standard Deviation=✔V
=?
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Step 1: Determine the given variables
VIEWStep 2: Finding midpoints ( x ) for each interval
VIEWStep 3: Finding value of class width ( i )
VIEWStep 4: Filling the given table
VIEWStep 5: Finding range of frequency distribution
VIEWStep 6: Finding value of mean deviation using formula
VIEWStep 7: Finding value of variance using formula
VIEWStep 8: Finding value of standard deviation using formula
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