1. Compute for the mean, median, sample variance 2. What is the modal class of the given 3. How many respondents has greater than 63 and above score.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question

1. Compute for the mean, median, sample variance

2. What is the modal class of the given

3. How many respondents has greater than 63 and above score.

 

(x-mean)^2 f(x-mean)^2
144
F
LB
HB
ef >
2
class interval
fx
ef<
81-83
X- mean
12
82
164
80.50
83.50
55
288
78-80
75-77
405
288
5
79
395
77.50
74.50
80.50
77.50
53
9.
81
8
76
608
15
48
36
9.
72-74
69-71
71.50
68.50
9.
73
657
74.50
24
40
3
81
70
630
71.50
33
31
66-68
67
536
65.50
68.50
41
22
-3
9.
72
63-65
10
64
640
62.50
65.50
51
14
-6
36
360
60-62
57-59
59.50
56.50
61
122
62.50
53
4.
-9
81
162
58
58
59.50
54
-12
144
144
54-56
55
55
53.50
56.50
55
-15
225
225
Transcribed Image Text:(x-mean)^2 f(x-mean)^2 144 F LB HB ef > 2 class interval fx ef< 81-83 X- mean 12 82 164 80.50 83.50 55 288 78-80 75-77 405 288 5 79 395 77.50 74.50 80.50 77.50 53 9. 81 8 76 608 15 48 36 9. 72-74 69-71 71.50 68.50 9. 73 657 74.50 24 40 3 81 70 630 71.50 33 31 66-68 67 536 65.50 68.50 41 22 -3 9. 72 63-65 10 64 640 62.50 65.50 51 14 -6 36 360 60-62 57-59 59.50 56.50 61 122 62.50 53 4. -9 81 162 58 58 59.50 54 -12 144 144 54-56 55 55 53.50 56.50 55 -15 225 225
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