Question

find the midean value (class marks) of the modal class of the following distribution

class. frequency
0-5. 10
5-10. 15
10-15. 12
15-20. 20
20-25. 9​

Answer 1

Answer:

comulative frequency has to be calculated

total frequency = 66 = n

n/2 = 33

comulative frequency just above 33 is 37 which corredpond to 10-15 class. Now you can calculate if you want to calculate media.