If the standard deviation of a sample is 12 inches, then the variance is 144 sq. inches. Do you agree?

Can you try?

Agree

SD^2 = variance

Yes, I can try to verify if the given information is correct.

To find the variance of a sample, we need to square the standard deviation. The formula for variance is:

Variance = Standard Deviation^2

In this case, the given standard deviation is 12 inches. So, if we square 12, we should get the variance.

Variance = 12^2 = 144 sq. inches

Therefore, based on the calculation, the variance does indeed come out to be 144 sq. inches. So, I agree with the statement that if the standard deviation of a sample is 12 inches, then the variance is 144 sq. inches.