## Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

a. $0.43$ b. $0.52$ c. $0.17$
a. Has type O blood The probability of choosing one American and has type O blood is $p=0.43$ b. Has type A or B The probability of choosing one American and has type A or B blood is $p=0.4+0.12=0.52$ c. Does not have type O or A The probability of choosing one American and does not have type O or A blood is $p=0.12+0.05=0.17$