The following frequency distribution shows the age composition of the persons under study. Mid age in years 13 18 23 28 33 38 43 48 Number of persons 24 f1 90 122 f2 56 20 33 (a) Find the median and modal life of condensers and interpret them. (b) Find the values of all quartiles. (c) Compute the 5th decile, 25th

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