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Mathematics, 11.11.2020 18:10 dmgcity
About 1/5 of all adults in the United States have type O blood. If four randomly selected adults donate blood, find the probability of each of the following events.
a. All four are type O.
b. None of them is type O.
c. Two out of the four are type O .
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About 1/5 of all adults in the United States have type O blood. If four randomly selected adults don...
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