Question

class interval 36 - 39 40 - 43 44 - 47 48 - 51 52 - 55 56 - 59 60 - 63. frequency 7 11 19 31 17 10 5 find arithmetic mean

Answer 1

Answer:

u need to convert ci

later apply formula

Answer 2

15,40,009; 70,43, 883; 15,40,190;51,34,209