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Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are presented. Class Freq, f Midpoint, fm fm? Cum. Freq (km/hr) m 80 < 100 4 100 < 120 9 120 < 140 13 140 < 160 9 160 < 180 5 90 360 32400 4 110 P 108900 13 130 1690 Q 26 202500 s 144500 40 Σfm2 R 1350 170 850 40 Σfm --- If the speed limit is 120 km/hr, approximately what percentage of cars is above the limit? O A. 54% О В. 80% O C.71% O D. 67%

Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are presented. Class Freq, f Midpoint, fm fm? Cum. Freq (km/hr) m 80 < 100 4 100 < 120 9 120 < 140 13 140 < 160 9 160 < 180 5 90 360 32400 4 110 P 108900 13 130 1690 Q 26 202500 s 144500 40 Σfm2 R 1350 170 850 40 Σfm --- If the speed limit is 120 km/hr, approximately what percentage of cars is above the limit? O A. 54% О В. 80% O C.71% O D. 67%

MATLAB: An Introduction with Applications
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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Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are presented. Freq, f Midpoint, fm2 Cum. Freq Class fm (km/hr) 80 < 100 4 100 < 120 9 120 < 140 13 140 < 160 9 160 < 180 5 90 360 32400 4 110 P 108900 13 130 1690 Q 26 202500 s 144500 40 Σfm2 R 1350 170 850 40 Σfm --- --- If the speed limit is 120 km/hr, approximately what percentage of cars is above the limit? O A. 54% О В. 80% OC 71% O D. 67%
Transcribed Image Text:Consider the grouped frequency distribution below, in which the speed (in km/hr) of 40 cars are presented. Freq, f Midpoint, fm2 Cum. Freq Class fm (km/hr) 80 < 100 4 100 < 120 9 120 < 140 13 140 < 160 9 160 < 180 5 90 360 32400 4 110 P 108900 13 130 1690 Q 26 202500 s 144500 40 Σfm2 R 1350 170 850 40 Σfm --- --- If the speed limit is 120 km/hr, approximately what percentage of cars is above the limit? O A. 54% О В. 80% OC 71% O D. 67%
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