In a sample of 50 people, 21 had type O blood, 22 had type A blood, 5 had type B blood, and
2 had type AB blood. Set up a frequency distribution and find the following probabilities.
a. A person has type O blood.
b. A person has type A or type B blood.
c. A person has neither type A nor type O blood.
d. A person does not have type AB blood