00:01
In this question, we are given here right arm and left arm.
00:11
And here in this problem, the data we are given here.
00:14
So, let's make a table.
00:17
So, right arm denoted by x, left arm denoted by y.
00:21
So, here you can write 101, 100, 94, 80, 79.
00:29
Here is 177, 172, 147, 148 and here is 147 again.
00:43
So, this is the data that we have.
00:45
Now taking the sum of all data.
00:48
So, here we can write summing the all data and here let's make a table for x square and here for x multiplied by y.
00:57
So, let's find out the answer and finding the sum of this.
01:02
So, let's find out the correct answer.
01:04
So, here is 10 ,201, here is 100, taking the square of this.
01:15
So, it is 10 ,000.
01:16
Here we talk about 94.
01:20
So, it is 8 ,836.
01:25
Here you can write 80, taking the square of this.
01:27
It is 6 ,400 and here you can write 94, taking the square of this, it is 6 ,241.
01:36
Now we are saying talk about for the xy.
01:38
So, x multiplied by y, which is 101 multiplied by 177.
01:41
The answer is 17 ,877.
01:45
Here is 100 multiplied by 172, which is 17 ,200.
01:52
Here is 94 multiplied by 147, which is 13 ,818.
01:59
Here is 80 multiplied by 148, which is equal to we can write 11 ,840.
02:06
And here is 79 multiplied by 147, which is equal to answer is 11 ,613.
02:12
Now let's simplify this and we can write answer is.
02:15
So, the answer is 454.
02:19
Y, answer is 791.
02:21
Here we have answer is 41 ,678.
02:25
And now summing the value of x and y.
02:28
So, answer is 72 ,348.
02:32
Now from the table, let's talk about average value of average of x, which is equal to we can write summation of x divided by n, which is equal to we can write 454 divided by we can write total number of data here, which is 5...