SOLUTION: Here is the probability model for the blood type of a randomly chosen person in the United States. Blood type O A B AB Probability 0.53 0.21 0.03 0.23 What is the probabili

Algebra ->  Finite-and-infinite-sets -> SOLUTION: Here is the probability model for the blood type of a randomly chosen person in the United States. Blood type O A B AB Probability 0.53 0.21 0.03 0.23 What is the probabili      Log On


   



Question 1050724: Here is the probability model for the blood type of a randomly chosen person in the United States.
Blood type O A B AB
Probability 0.53 0.21 0.03 0.23
What is the probability that a randomly chosen American does not have type O blood?
% Round to the nearest 0.01%

Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
the probability of having the particular blood type is:
type o = .53
type a = .21
type b = .03
type ab = .23

the probability of having type o is .53.

the probability of not having type o is 1 - .53 = .47

the sum of all probabilities has to be equal to 1.

.53 + .21 + .03 + .23 = 1.

the probabilities are correct.

the probability of not having type o is also the probability of having any of the other 3 types.

that would be equal to .21 + .03 + .23 = .47.

the general formula would be p(not a) is equal to 1 - p(a), where a is the event.

in this case, the event is having blood type O.