1. Shown in the following table are the reported annual deaths of males aged 75 or over from 1 of the 5 leading types of cancer:
Site of Cancer Number of Deaths
Lung 12,226
Prostate 10,835
Colon or Rectum 8,426
Stomach 3,037
Pancreas 3,031
37,555
For a randomly selected deceased male cancer victim, what is the probability that
a) he died of lung or prostate?
b) He died of cancer of either the stomach or the pancreas?
c) He did not die of lung cancer?
2. Out of every 100 cars that start in the Maryland Grand Prix race, only 60 finish. Two cars are entered by the UMUC team in this year's race.
a) What is the probability that both will finish?
b) What is the probability that neither of UMUC's 2 cars will finish the grand prix?
3. A review of the records at Lander Community College revealed the following ethnic breakdown of the student population:
Caucasian 1200
Black 640
Hispanic 280
Asian 80
Native American 60
Other 20
a) What is the probability that a randomly selected student is either Caucasian or Black?
b) What is the probability that the selected student is not a member of either of the two largest categories?
4. Democrat Republican Independent
Maryland 10 15 65
North Carolina 35 25 75
Los Angeles 60 20 70
A group of voters from 3 states were selected and the results are above. What is the probability of selecting a random voter from North Carolina, given that the voter was a republican?
a).357
b).417
c).267
d).200
5. Democrat Republican Independent
Maryland 10 15 65
North Carolina 35 25 75
Los Angeles 60 20 70
A group of voters from 3 states were selected and the results are above. What is the probability of selecting a random voter that is from Los Angeles or a Democrat?
a) .093
b) .520
c) .613
d) .357
6. In 20 pulls of the cards, 20 cards were red. What is the probability that on the 21st pull the card will be red?
a) .5000
b) .2500
c) .000000477
d) .03125