Question

help... i'll mark brainliest

Answer 1

Step-by-step explanation:

ye konsi class ka quiestion he.,...yaar

Answer 2

Answer:

THE ANSWER IS 10 + 15 = 25

Step-by-step explanation:

CLASS     FREQUENCY    CUMULATIVE FREQUENCY

0-5                10                              10

5-10               15                              25

10-15              12                             37

15-20             20                            57

20-25              9                             66

HERE N = 66

therefore N/2= 33, which lies in the interval 10- 15

so, the lower limit of the median class is 10

The highest frequency is 20 which lies in the interval 15-20

Therefore, the lower limit of the modal class is 15

So the required sum is 10 + 15 = 25

HOPE IT HELPS YOU..