Math, asked by arunkumar8218, 1 year ago

Solve this :

22. The following frequency distribution shows the daily savings of 64 children in a locality :




Daily savings (in Rs)

1 - 3

3 - 5

5 - 7

7 - 9

9 - 11

11 - 13

13 - 15



Number of children

7

6

x

13

y

5

4

Answers

Answered by Tanay123456789
0

Answer:

The value of x is 9 and y is 20

Step-by-step explanation:

The following frequency distribution shows the daily savings of 64 children in a locality. the mean saving is ₹8

                                       

     1-3                   2            7                                 14

     3-5                  4            6                                 24

     5-7                  6            x                                 6x

     7-9                   8            13                               104

     9-11                  10            y                                10y

     11-13                 12           5                                 60

     13-15                14            4                                 56

                                     

Where, mean = 8 , and

Now we have two equation of x and y to solve for x and y using elimination method.

Thus, The value of x is 9 and y is 20

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