00:01
The data is 30 to 4, 30 to 34, 35 to 39, 40 to 44, 45 to 49, 50 to 54, 55 to 59, 50 to 54, 55 to 59, 60 to 64, 65 to 59, 60 to 64.
00:32
And the required data is f width is given to be frequency is given to be f not that is 1 1 4 4 5 10 14 21 and 14 again which is nothing but the total sum up is nothing but 74 so here the mid value x can be obtained in terms of 32 37 47, 42, 47, 52, 57, 52, 57, 62, 62, 67 and 72.
01:14
Here we are going to consider 52 to be the assumed mean.
01:19
Since we are doing it in terms of assumed mean concept, there is no need to sum up the concept data, given data in terms of a continuous order, okay? so here d is equal to x minus a, divide, by h...