a) Consider a random sample of n 8 people who donated blood over the past three months. The expected number of people with blood type O+is and the expected number of people with blood type A-is Round...

At the Blood Bank, they know thatO+ blood is the most common blood type and that 40% of the people are known to haveO+ blood. Blood typeA- is a very scarce blood type and only 6% of the people haveA- blood. Half of the people have blood typeA orB.

Let:

• X= number of people who have blood typeO+
  


• Y= number of people who have blood typeA-
  


• Z= number of people who have blood typeA orB
  

please answer a) b) and c)

Extracted text: a) Consider a random sample of n 8 people who donated blood over the past three months. The expected number of people with blood type O+is and the expected number of people with blood type A-is Round your answers to 2 decimal places. Calculate the following probabilities: o P(X = 2) Round your answer to 4 decimal places. o P(X > 2) - Round your answer to 4 decimal places.


Extracted text: b) Consider a random sample of n 32 people who donated blood over the past three months. Use the relevant probability function of Y to calculate the probability that 4 people in the random sample will have type A-blood. Round your answer to 4 decimal places. c) Consider a random sample of n 26 people who donated blood over the past three months. The standard deviation of Z is: Round your answer to 4 decimal places The distribution of Z is: (Choose all the applicable options, marks will be deducted for incorrect choices.) Continuous O Skew to the left O Binary O Discrete O Skew to the right O Symmetric