Answer:
$375
Explanation:
A stock you own earned: $200, $500, $100, and $700 over the last four years.
We need to find the annual gain in value over the four years. We know that,
Mean = sum of observations/total no. of observations
Put all the values,
[tex]M=\dfrac{200+500+100+700}{4}\\\\M=\$ 375[/tex]
So, the required mean annual gain is equal to $375.
