These sets of data have the same mean. Which choice correctly completes this statement? The standard deviation of set A is _ the standard deviation of set B.

20 points because i dont get it and i have points to spare.

(also if someone would be so kind as to explain their answer, they'd get brainliest hint hint)

less than

Step-by-step explanation:

The standard deviation of set A is 0, and the standard deviation of B is about 1.8, so B is higher.

To do standard deviation, you first have to find the mean.

For B the mean is 7.

Then you subtract the mean from each number.

For B the data set is: -2, -2, 0, 2, 2

Then you square each number

4,4,0,4,4

Then you calculate the variance (basically the mean).

The mean of B is 3.2

Then you take the square root of 3.2, which is about 1.8.

If you do the same thing for A, you will get 0, which means set A is less than set B.

what's that