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Illustration 9.4. The first and third columns of Table 9.3 give the frequency distribution of the average monthly earnings of male workers. Calculate the mean earnings. TABLE 9.3. DISTRIBUTION OF MALE WORKERS BY AVERAGE MONTHLY EXPENSES (Computation of Arithmetic Mean ... Long Method) Monthly earnings Mid-point No. of workers Rs Rs Rs m fm 3,600 5,320 6,800 9,630 20,500 23,595 34,080 27.5 - 32.5 30 120 152 32.5-37.5 37.5-42.5 35 40 170 42.5 47.5 45 214 47.5 - 52.5 50 410 52.5 57.5 55 429 57.5 62.5 60 568. 42,250 55,650 68,625 59,600 45,050 23,310 14,440 10,700 5,250 2,750 62.5-67.5 67.5 -72.5 65 650 70 795 72.5 - 77.5 75 915 77.5-82.5 80 745 82.5-87.5 85 530 87.5-92.5 92.5-97.5 97.5 - 102.5 102.5--107.5 107.5-112.5 90 259 95 152 100 107 105 SO 110 25 6,291 4, 31,150

Illustration 9.4. The first and third columns of Table 9.3 give the frequency distribution of the average monthly earnings of male workers. Calculate the mean earnings. TABLE 9.3. DISTRIBUTION OF MALE WORKERS BY AVERAGE MONTHLY EXPENSES (Computation of Arithmetic Mean ... Long Method) Monthly earnings Mid-point No. of workers Rs Rs Rs m fm 3,600 5,320 6,800 9,630 20,500 23,595 34,080 27.5 - 32.5 30 120 152 32.5-37.5 37.5-42.5 35 40 170 42.5 47.5 45 214 47.5 - 52.5 50 410 52.5 57.5 55 429 57.5 62.5 60 568. 42,250 55,650 68,625 59,600 45,050 23,310 14,440 10,700 5,250 2,750 62.5-67.5 67.5 -72.5 65 650 70 795 72.5 - 77.5 75 915 77.5-82.5 80 745 82.5-87.5 85 530 87.5-92.5 92.5-97.5 97.5 - 102.5 102.5--107.5 107.5-112.5 90 259 95 152 100 107 105 SO 110 25 6,291 4, 31,150

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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llustration 9.4. The first and third columns of Table 9.3 give the frequency distribution of the average monthly earnings of male workers. Calculate the mean earnings. TABLE 9.3. DISTRIBUTION OF MALE WORKERS BY AVERAGE MONIHLY EXPENSES (Computation of Arithmetic Mean . . . Long Method) Monthly earnings Mid-point No. of workers Rs Rs Rs m fm 3,600 5,320 6,800 9,630 20,500 23,595 34,080 42,250 27.5 - 32.5 30 120 32.5–37.5 35 152 37.5–42.5 40 170 42.5 47.5 45 214 47.5 – 52.5 50 410 52.5 57.5 55 429 57.5 62.5 60 568. 62.5-67.5 65 650 55,650 68,625 59,600 45,050 23,310 14,440 10,700 5,250 2,750 67.5 -72.5 70 795 72.5 -77.5 77.5-82.5 75 915 80 745 82.5-87.5 85 530 87.5-92.5 90 259 92.5-97.5 95 152 97.5 - 102.5 100 107 102.5--107.5 105 SO 107.5 -112.5 110 25 Σ 6,291 4, 31,1 50
Transcribed Image Text:llustration 9.4. The first and third columns of Table 9.3 give the frequency distribution of the average monthly earnings of male workers. Calculate the mean earnings. TABLE 9.3. DISTRIBUTION OF MALE WORKERS BY AVERAGE MONIHLY EXPENSES (Computation of Arithmetic Mean . . . Long Method) Monthly earnings Mid-point No. of workers Rs Rs Rs m fm 3,600 5,320 6,800 9,630 20,500 23,595 34,080 42,250 27.5 - 32.5 30 120 32.5–37.5 35 152 37.5–42.5 40 170 42.5 47.5 45 214 47.5 – 52.5 50 410 52.5 57.5 55 429 57.5 62.5 60 568. 62.5-67.5 65 650 55,650 68,625 59,600 45,050 23,310 14,440 10,700 5,250 2,750 67.5 -72.5 70 795 72.5 -77.5 77.5-82.5 75 915 80 745 82.5-87.5 85 530 87.5-92.5 90 259 92.5-97.5 95 152 97.5 - 102.5 100 107 102.5--107.5 105 SO 107.5 -112.5 110 25 Σ 6,291 4, 31,1 50
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