00:01
So, in question number 4, arranging the numbers in ascending order, we will get 9, 10, 11, 11, 12, 12, 13, 17 and 19.
00:11
So, the number of terms is 9 and the median will be equals to 9 plus 1 term which is equals to fifth term which is 12.
00:26
Now, in question number 5, arranging the number in the ascending order, we will get 50, 53, 55, 55, 56, 56, 60, 61, 62 and 65.
00:41
So, the number of terms is 10.
00:43
So, median will be equals to 10 divided by 2 plus 10 divided by 2 plus 1 and this is whole divided by 2 that will be equals to fifth term plus sixth term divided by 2 which is equals to 12 plus 12 divided by 2 and the value is equals to 12.
01:04
Now, in sixth part of the question, we are given the number of terms, let's say n is equals to 7 and the mean will be equals to that is 3 plus 4 .5 plus 5 plus 3 plus 4 plus 3 plus 2 and this is whole divided by 7 and the value will be equals to 24 .5 divided by 7 this is equals to 3 .5.
01:28
So, the variance will be equals to variance we will get that this will be equals to 1 .08 and now in seventh part of the question, number of term let's say n is equals to 4...