Suppose that in a certain population 45% of people have type O blood.A researcher selects people at random from this population.What is the probability that there is a person with type O blood among the first 6 people checked?
A)0.0277
B)0.0226
C)0.0083
D)0.0503
E)0.9723

Question

Quizplus · Accepted Answer

The probability that none of the first 6 people have type O blood is (0.55)^6. Therefore, the probability that at least one person has type O blood is 1 - (0.55)^6 = 0.9723.

Suppose That in a Certain Population 45% of People Have