MEAN, MEDIAN AND MODE SUMS FOR PRACTICE. fybcom MSU., Exercises of Statistics

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size Family No. of Persons ys! the most sultable average in each of the following cases. rage speed of the typist jginbution has open end classes. ation has wide range of variation. jation is charged by diminishing balance method and : FLY. B.Com. | Statistics | Unit ~ - SELF TEST egence of students in a class. the cost of living of workers. of readymade garments. vered is fixed but speed are varying and average speed is . PRACTICAL EXAMPLES ARITHMATIC MEAN calculate the mean profit (Rs.) of a given firm from the following data of Profits over a period of five years by the 1° rect and short methods: : 1965 1966 1967 1968 4969 Yahas) : 10612 10610 10,600 10625 10.38 | Sol UnderDirectMethod 15 Goe Under Short cut Method Year Profit(Rs.) < ,-0 Year Profit (Rs.) x ~ x d=x- 10,600 1965 © 10,612 \2- 1985 “10,612 12 1966 10,610 Ve 4966 © 10,610 10 ‘67 10,600 ° 1967 A=(10,600) 0 13 ««10,625—C = 4968 10,625 5 eo 10,638 4969 10,638 B 530a5= mx <> 85= Id 122425388 = Rs, 10,617 x= A+ = 1000+ 8 = Rs. 10,617 2. Cabulale arithmetic average by (a) Direct Method & (6) Short-cut Method from the following data: i) Fmly: A BC O FE FGH I J || Weeklyincome: 850 700 100 750 5000 80 420 2500 400 360 (Ans. 1116) 4. From the following data of monthly income of 10 families calculate the average Income (x) A B Cc D E F G H | J Income (Rs.): 1650 1520 1490 1690 1665 1745 1995 1797 1687 1456 , (Ans. 1649.5) |]4 Calculate the arithmetic mean from the following table: Hoght(ininches) 68 60 62s LC ti 12 14 20 13 8 5 “t