Homework SourseLung Prostate Colon or Rectum Stomach Pancreas 12026 10035 8
Lung
Prostate
Colon or Rectum
Stomach
Pancreas
12,026
10,035
8,026
3,037
3,031
36,155
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:
For a randomly selected deceased male cancer victim, what is the probability that
He died of lung or prostate?
He died of cancer of either the stomach or the pancreas?
He did not die of lung cancer?
Out of every 100 cars that start in the Maryland Grand Prix race, only 35 finish. Two cars are entered by the UMUC team in this year’s race.
What is the probability that both will finish?
What is the probability that neither of UMUC’s 2 cars will finish the grand prix?
A review of the records at Lander Community College revealed the following ethnic breakdown of the student population:
Caucasian 1200
Black 600
Hispanic 200
Asian 80
Native American 60
Other 20
What is the probability that a randomly selected student is either
Caucasian or Black?
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
| Lung Prostate Colon or Rectum Stomach Pancreas | 12,026 10,035 8,026 3,037 3,031 36,155 |
Solution
ok friend, the solution is:
for the first probability, we calculate the sum of the probabilities of the two events:
P(LUP)=(12026/36155)+(10035/36155)=0.6101
for the next, as the sum of the probabilities of the two events:
P(SUPa)=(3037/36155)+(3031/36155)=0.1678
For the latter, we can calculate the complement of the event that we are asking and then subtract 1.
[P(Lu)]c = 1 - P(Lu) = 1 - (12026/36155) = 0.6674
The other problems are solved in the same way.
Regards!
