Question

Determine missing frequency x, from the following data , when mode is 44. class 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 frequency 7 8 13 15 x 10 14 8

Answer 1

Since the mode of the given series is 36 and maximum frequency 16 lies in the class 3244 the modal class is 30 to 40 the missing frequencies X then I'll equals to 30 f 1 equals to 16 as 0 = 2 x 2 = 212 and X = 210 36 + 10 into 16 - X by 20 - X 36 equals to 30 + 10 into 16 - X by 2 into 16 minus x minus 12 36 - 30 equals to 10 into 16 - X by 20 - 66 by 1 equals to 10 into 16 minus x by 20 - x 10 into 16 - x = 26 20 - x 160 - 10 X equal to 120 - 6 x minus 10 X + 16 X equals to 120 - 160 - 4 x equals to minus 14 x equals to minus 40 by 4 equals to 10

Answer 2

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