Stat problems for Wed, Sept 4
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Suppose we draw a card from a well shuffled deck.
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What is the probability that we draw a red four?
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What is the probability that we draw a red four or a diamond?
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Suppose we draw two cards from a well shuffled deck.
What is the probability that we draw a red four and then a club?
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The table below shows a contingency table for class data from one of my classes a few years ago. The columns are indexed by gender and the rows by declared major. Suppose we randomly pick a student from this class.
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What is the probability that student is a statistics major?
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What is the probability that student is a Health and Wellness major or a man?
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What is the probability that student is a Health and Wellness major and a man?
| Gender |
Female |
Male |
All |
| Major |
|
|
|
| Biology |
1 |
1 |
2 |
| Computer Science |
1 |
2 |
3 |
| Enviromental Science |
2 |
0 |
2 |
| Health and Wellness |
2 |
3 |
5 |
| Management |
2 |
2 |
4 |
| Mass Comm |
2 |
0 |
2 |
| Music |
1 |
0 |
1 |
| Music And Accounting |
0 |
1 |
1 |
| New Media |
0 |
1 |
1 |
| Political Science |
0 |
2 |
2 |
| Psychology |
2 |
0 |
2 |
| Sociology |
1 |
0 |
1 |
| Statistics |
0 |
1 |
1 |
| All |
14 |
13 |
27 |