1a) One particular high school encourages students to donate blood. The high school gym is set up for this purpose. This distribution of blood types in NA is as follows:

Type O: 44%

Type A: 42%

Type B: 10%

Type AB: 4%

What is the probability that the first two people in line up have the same blood type?

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1b) what is the probability that none of the first five people in line up have the type AB blood?

I m not sure how to do this question?