Help ASAP! I will fan & medal please please please!

Murray's stocks changed these amounts over these months: -8.23 in September, -5.67 in October, 4.8 in November, and -2 in December. What is the average change over that time period? (Points : 2)
- 2.775
+ 2.775
+ 5.175
- 5.175

Question

Help ASAP! I will fan & medal please please please!

 Murray's stocks changed these amounts over these months: -8.23 in September, -5.67 in October, 4.8 in November, and -2 in December. What is the average change over that time period? (Points : 2)
       - 2.775
       + 2.775
       + 5.175
       - 5.175

igreen · Answer

The average would be the mean.

To find the mean add all the numbers and divide by how many numbers there are.

Numbers: -8.23, -5.67, 4.8, and -2
Amount of Numbers: 4

Add the numbers: -8.23 + -5.67 + 4.8 + -2 = -11.1

Now divide -11.1 / 4, what do you get? @lee_actress

anonymous · Answer

-2.775

igreen · Answer

Yep, so that's your answer.

anonymous · Answer

Could u help me with 2 more please? @iGreen

igreen · Answer

Sure, just make a new question and close this one.