Amy is comparing two investments that are being offered to her.

Below are particulars of those investments:

Investment A		Investment B
Probability	Return	Probability	Return
0.50	9%	0.10	-5%
0.30	10%	0.60	45%
0.20	15%	0.30	25%

Based on the information given, help Amy to calculate the following:

Expected rate of return

Standard deviation

Coefficient of variation

Determine the best investment for Amy if she is a risk seeker.