Question

HELP!!!! Which answer correctly describes the change in the standard deviation for the data set {3,4,6,7,8,20} when the outlier is not included in the calculation?

(Its Not The Second one.)

The standard deviation decreases from 8 to 5.6, which means a graph of the values is less spread out without the outlier.

The standard deviation is still 5.63, which means a graph of the values doesn't change without the outlier. XXXXX

The standard deviation decreases from 5.63 to 1.85, which means a graph of the values is less spread out without the outlier.

The standard deviation increases from 1.85 to 5.63, which means a graph of the values is more spread out without the outlier.

Answer 1

Ok I also need help with this can you help???? I will try helping you with that homework

Answer 2

C. The standard deviation decreases from 5.63 to 1.85, which means a graph of the values is less spread out without the outlier.

Explanation:

I just took the test and got it right! I hope this helps <3