Math 54 Section 5.1 and 5.2
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Math 54
Section 5.1 and 5.2
1. A probability experiment is conducted in which the sample space of the experiment is
S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}. Let event A = {2, 3, 4, 5} and event B = {13, 14, 15}. Assume that each outcome is equally likely.
List the outcomes in A and B. Are A and B mutually exclusive?
2. The events A and B are mutually exclusive. If P(A) = 0.7 and P(B) = 0.2, what is P (A or B)?
3. The distribution of Bachelor's degrees conferred by a university is listed in the table. Assume that a student majors in only one subject. What is the probability that a randomly selected student with a Bachelor's degree majored in Physics or Philosophy? Round your answer to three decimal places.
Major |
Frequency |
Physics |
230 |
Philosophy |
205 |
Engineering |
86 |
Business |
176 |
Chemistry |
222 |
4. A probability experiment is conducted in which the sample space of the experiment is
S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}. Let event A = {6, 7, 8, 9} and event B = {8, 9, 10, 11, 12}. Assume that each outcome is equally likely. List the outcomes in A and B. Are A and B mutually exclusive?
5. Given that ( ) = , () = , and ( ) = , find ().
6. If two events have no outcomes in common they are said to be ___________________.
7. Two events are ________________ if the occurrence of event E in a probability experiment changes the probability of event F in the same experiment.
8. Two events are __________________ if the occurrence if the occurrence of event E in a probability experiment does not affect the probability of event F in the same experiment.
2022-05-21