Natasha reviewed her investment returns over the last three years and reported these statistics:

5% in Year 1, 3% in Year 2, and 7% in Year 3.

What is her expected return based on the historical performance?

A.) 3%

B.) 4%

C.) 7%

D.) 5%

What is the standard deviation of Natasha's investment?

7.48%
	6.35%
	4.32%
	2.91%