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)

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 poin class=

Respuesta :

Answer:

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.