Question

I'm on an iPad and it wouldn't let me select stats.
Find the sample standard deviation for the following data 15,16,17,18,19
I got 1.5 but I'm not sure if it's correct

Answer 1

Question #17303 Find the sample standard deviation for the following data 15,16,17,18,19. I got 1.5 but I'm not sure if it's corrects.

Solution. First, calculate the mean of this sample $(15 + 16 + 17 + 18 + 19) / 5 = 17$, a standard deviation equals $\sqrt{\frac{1}{5}((15 - 17)^2 + (16 - 17)^2 + (17 - 17)^2 + (18 - 17)^2 + (19 - 17)^2)} = \sqrt{2} \approx 1.23$.

Answer. $\sqrt{2}$ or approximately 1.23.