Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are presented. Class Freq, f Midpoint, fm fm2 Cum. Freq (km/hr) 80 < 100 100 < 120 9 120 < 140 13 140 < 160 9 160 < 180 5 40 4 90 360 32400 4 110 P 108900 13 130 1690 Q 26 202500 s 144500 40 Efm? R 1350 170 850 Σfm --- The mode (in km/hr) is: O A. 128 О В. 130 О С 133 O D. 135

MATLAB: An Introduction with Applications
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Consider the grouped frequency distribution below, in which the speed
(in km/hr) of 40 cars are presented.
Freq, f Midpoint,
Class
fm
fm?
Cum. Freq
(km/hr)
m
80 < 100 4
100 < 120 9
120 < 140 13
140 < 160 9
90
360
32400
4
110
P
108900 13
130
1690
Q
26
202500 s
144500 40
Σfm2
R
1350
160 < 180 5
170
850
40
Σfm
---
---
The mode (in km/hr) is:
O A. 128
О В. 130
O . 133
O D. 135
Transcribed Image Text:Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are presented. Freq, f Midpoint, Class fm fm? Cum. Freq (km/hr) m 80 < 100 4 100 < 120 9 120 < 140 13 140 < 160 9 90 360 32400 4 110 P 108900 13 130 1690 Q 26 202500 s 144500 40 Σfm2 R 1350 160 < 180 5 170 850 40 Σfm --- --- The mode (in km/hr) is: O A. 128 О В. 130 O . 133 O D. 135
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