According to data from the state blood program,40% of all individuals have group A blood.If six (6)individuals give blood,find the probability Exactly three of the individuals has group A blood?
A).4000
B).2765
C).5875
D).0041

Question

Quizplus · Accepted Answer

The probability of an individual having group A blood is 0.4. The probability of an individual not having group A blood is 0.6. The probability of exactly three individuals having group A blood out of six is given by the binomial distribution:P(X = 3) = (6 choose 3) * (0.4)^3 * (0.6)^3 = 0.2765Therefore, the probability of exactly three of the individuals having group A blood is 0.2765, which is choice B.

According to Data from the State Blood Program,40% of All