00:01
In the first part of question we have data 12, 27, 26, 27 and 25.
00:15
Now, mean will be equal to sum of all observations divided by number of observations.
00:27
So here, sum of all observations is 117 and we have total number of observations 5.
00:36
So mean will be equal to 23 .4.
00:45
Now we will calculate median for median we have to first arrange numbers in ascending order 12 25 26 27 and 27 as we have 5 observations here so the middle term will be the median so median is third observation our median here is 26 so our answer is 26 now finding mode is mode is defined as the value that is repeatedly occurring in a given set so in this set 27 is occurring two times which is maximum so our mode will be equal to 27 this is the answer of first part now coming to the second part of the question we are given minus 20 15 21 minus 20 and 19 now in this mean will be equal to minus 20 plus 15 plus 21 minus 20 plus 19 divided by 5 so it will be equal to 15 divided by 5.
02:59
Now, our mean will comes out to be 3.
03:03
Now let us calculate median.
03:06
For median, we will arrange all the numbers in ascending order.
03:10
This will be minus 20, minus 20, 15, 19, 21.
03:21
And our third observation here is 15.
03:32
So 15 is the median of the given set.
03:34
Now finding out mode.
03:40
As i had said earlier, that mode is defined as the value that is repeatedly occurring in the given set...