A sample of n = 4 scores, has σ x = 4, and σ x 2 = 32. what is the value of ss for this sample?

In this question, there are given some values, so the number of terms here is given us 4 and the sum of the x rates, given us 4 and the sum of the x squared, which is 32 point. So what is the question is being asked, so we have to find the sum of squares some of squarest. First of all, the sum of squares which is equal to this is the sum of this is x. I, which is the term minus the x bar, which is the mean value and take the square of this 1, so this is some of the square, so what we have? First of all, we need to find the value of x bar here, so xr means the average value or the mean value. So it has the formula the sum of the square divided by the number of terms. So from here, the x bar reaches the sum of square sum of x, which is 4 as given, and the number of terms here is 4, which is equal to 1 point great. So what we need again, we need to x square show the sum of square which is equal to this. The sum of this is x. I minus x bar so x bar is 1 squared. So we need to get the value of this expression here. So what we have to do, let's take the square of this expression, so we can write as this is x, i squared and minus 2 x i and plus 1. So i can write this expression separately, which is some of x. I squared and minus sum of 2 x i and plus the sum of 1 here, so we know that there are 4 number of terms here. So the sum of x i squared and minus 2 just comes out as 2 times sum of x. I and plus we know that there are 4 terms here, so i can write this expression as 4 times 1 because we have to add 14 times, because there are 4 terms because the n is given us 4. Don'T for that, so the sum of x i squared, which has given us 32 and minus 2 times the sum of x, which has given us 4 n plus 4 times 1, which is 14 point that is 32 minus 8 plus 4, which is going to be 28 point so the sum square for this number for this question, which is 28 point.

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