Refer to the incomplete grouped frequency distribution below. Classes (Rand) Frequency | Cumulative frequency 24 8.00 < 12.00 24 12.00 < 16.00 |X 16.00 < 20.00 46 20.00 < 24.00 Y 102 18 120 ТОTALS 120 The "fm " value of the first class (where f and m are the frequency and midpoint, respectively) is:

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Refer to the incomplete grouped frequency distribution below.
Classes (Rand) Frequency Cumulative frequency
24
8.00 < 12.00
12.00 < 16.00
46
24
Y
102
16.00 < 20.00
20.00 < 24.00
18
120
120
ТОTALS
The "fm " value of the first class (where f and m are the frequency and midpoint, respectively) is:
Transcribed Image Text:Refer to the incomplete grouped frequency distribution below. Classes (Rand) Frequency Cumulative frequency 24 8.00 < 12.00 12.00 < 16.00 46 24 Y 102 16.00 < 20.00 20.00 < 24.00 18 120 120 ТОTALS The "fm " value of the first class (where f and m are the frequency and midpoint, respectively) is:
Refer to the incomplete grouped frequency distribution below.
Classes (Rand) Frequency Cumulative frequency
8.00 < 12.00 24
12.00 < 16.00
16.00 < 20.00
24
X
Y
46
102
120
20.00 < 24.00
18
ТОTALS
120
The variance is approximately
Transcribed Image Text:Refer to the incomplete grouped frequency distribution below. Classes (Rand) Frequency Cumulative frequency 8.00 < 12.00 24 12.00 < 16.00 16.00 < 20.00 24 X Y 46 102 120 20.00 < 24.00 18 ТОTALS 120 The variance is approximately
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Formal :

Midpoint : (upper boundary + lower boundary)/2

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