the Blood Bank, they know that O+ blood is the most common blood type and that 40%40% of the people are known to have O+ blood. Blood type A- is a very scarce blood type and only 6%6% of the people have A- blood. Half of the people have blood type A or B. Let: X=X= number of people who have blood type O+ Y=Y= number of people who have blood type A- Z=Z= number of people who have blood type A or B Consider a random sample of n=44 people who donated blood over the past three months. Use the relevant probability function of YY to calculate the probability that 44 people in the random sample will have type A- blood.
t the Blood Bank, they know that O+ blood is the most common blood type and that 40%40% of the people are known to have O+ blood. Blood type A- is a very scarce blood type and only 6%6% of the people have A- blood. Half of the people have blood type A or B.
Let:
- X=X= number of people who have blood type O+
- Y=Y= number of people who have blood type A-
- Z=Z= number of people who have blood type A or B
Consider a random sample of n=44 people who donated blood over the past three months.
Use the relevant
Obtain the probability that 4 people in the random sample will have type A- blood.
The probability that 4 people in the random sample will have type A- blood is obtained below as follows:
Let Y denotes number of people who have blood type A- which follows binomial distribution with the probability of success 0.06 and the sample of 4 people has been selected.
That is, n=4,p=0.06, q=0.94(=1–0.06).
The probability distribution is given by,
Step by step
Solved in 2 steps with 2 images
