Construct a table with the following column labels: (i) Class Midpoint, x (ii) fx (iii) fx²

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The exam mark of a class of 40 students are as shown below:
Mark
Frequency (f)
40 – 49
2
50 – 59
5
60 – 69
10
70 – 79
15
80 – 89
5
90 – 99
3
Total
40
(а)
Construct a table with the following column labels:
(i)
Class Midpoint, x
(ii)
fx
(iii)
fx?
(b) Hence, calculate the values of the followings:
(i)
Mean,
(ii)
Mode,
(iii)
Median,
(iv)
Standard deviation.
Transcribed Image Text:The exam mark of a class of 40 students are as shown below: Mark Frequency (f) 40 – 49 2 50 – 59 5 60 – 69 10 70 – 79 15 80 – 89 5 90 – 99 3 Total 40 (а) Construct a table with the following column labels: (i) Class Midpoint, x (ii) fx (iii) fx? (b) Hence, calculate the values of the followings: (i) Mean, (ii) Mode, (iii) Median, (iv) Standard deviation.
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