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Using the sample data in Table 1 above, determine the mid-80% range of the daily consumption of water. A    185.1l B    179.3l C    194.9l D    168.4l

Using the sample data in Table 1 above, determine the mid-80% range of the daily consumption of water. A    185.1l B    179.3l C    194.9l D    168.4l

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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Using the sample data in Table 1 above, determine the mid-80% range of the daily consumption of water.


A    185.1l
B    179.3l
C    194.9l
D    168.4l

As part of a pilot study aimed at determining the daily consumption of water (in litres) across selected suburbs of Johannesburg, Johannesburg Water SOC Ltd (JW), a municipal entity, collected the sample data shown in Table 1 below. Cumulative frequency Class (L) 100 < 150 150 < 200 200 < 250 250 < 300 300 < 350 350 < 400 Total Frequency, f Midpoint, m 40 125 W 175 130 225 275 325 375 X 75 35 Σf fm 5 000 17 850 29 250 Y 24 375 13 125 Σfm fm² 625 000 3 123 750 6 581 250 Z 7 921 875 4 921 875 Σfm² 40 ? 272 ? 465 500
Transcribed Image Text:As part of a pilot study aimed at determining the daily consumption of water (in litres) across selected suburbs of Johannesburg, Johannesburg Water SOC Ltd (JW), a municipal entity, collected the sample data shown in Table 1 below. Cumulative frequency Class (L) 100 < 150 150 < 200 200 < 250 250 < 300 300 < 350 350 < 400 Total Frequency, f Midpoint, m 40 125 W 175 130 225 275 325 375 X 75 35 Σf fm 5 000 17 850 29 250 Y 24 375 13 125 Σfm fm² 625 000 3 123 750 6 581 250 Z 7 921 875 4 921 875 Σfm² 40 ? 272 ? 465 500
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