(- 72 +4 -12)/10
-80/10
-8
The stock fell an average of $8.00 per day
Answer:
- $ 8
Step-by-step explanation:
Given,
The price of share of the company fell $ 72 over 8 days,
i.e., the changes for 8 days = -$ 72,
Now, it rose $ 4 on ninth day,
i.e., the changes for 9th day = +$ 4,
Again it fall $ 12 on tenth day,
i.e., the changes on 10th day = -$12,
So, the total changes in 10 days = changes for 8 days + change for 9th day + change for 10th day
= -72 + 4 - 12
= -$ 80
Now, we know that,
[tex]\text{Average}=\frac{\text{Sum of all observation}}{\text{Total observations}}[/tex]
Hence, the average change in 10 days = [tex]\frac{-80}{10}[/tex] = -$ 8
