Question

If the mean of the following frequency distribution is 9, find the value of 'a'. Write the tally marks also.
Variable (x)
4
6
8
10
12
15
Frequency
8
9
17
a
8
4
11​

Answer 1

Answer:

0 - 10 5

10 - 20 8

20 - 30 15

30 - 40 16

40 - 50 6

Answer 2

Answer:

36

Step-by-step explanation:

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