Math, asked by mohakpaul2005, 9 months ago

the mean of the following distribution is
class interval :0-10,10-20,20-30,30-40,40-50,
frquency:12,16,6,7,9
a)12
b)16
c)18
d)11

Answers

Answered by BlueScent
1

Answer:

Class Interval  frequency  (fi)  Mid value  fixi

0-10  12  5  60

10-20  16  15  240

20-30  6  25  150

30-40  7  35  245

40-50  9  45  405

                                                                 N=∑fi=50                                     ∑fixi=1100

∴Mean=∑fi∑fixi​=501100​=22

solution

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