statistics

Suppose that the proportions of blood phenotypes in a particular population are a follows:
A = .42
B = .10
AB = .04
O = .44
Assuming that the phenotypes of two randomly selected indiviuals are independent of one another, what is the probablility that both phenotypes are O? What is the probablility that the phenotypes of two randomly selected individuals match?

I'm really stuck on how to approach and solve this problem. From what I see, it says they are independent so would we need to use a formula of the kind
P(O Phenotype) = P(A) * P(B)

where A and B are the events of two randomly selected individuals?

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1. Right!

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2. now i don't know what to do frrom there

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