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Quiz 1. CS567 Spring 2006
10 minutes. 10 points.
Write your name BEHIND this sheet of paper and give brief answers to the following
questions.
1) What range of values can a probability mass function take? What range of values
can a probability density function take? What range of values can a cumulative
distribution function take?
2) Given the joint distribution of 2 random variables X & Y, how would you
calculate the marginal distribution of X?
3) In each of these pairs, which is the data and which is the model:
a. Photograph and Person
b. Scatter Plot, Line fit
4) How would you calculate the probability of getting an A in this course?
5) What is the probability that 2 students in this class share the same birthday (ignore
year and assume there is not such thing as a leap year)?
Quiz 1. CS567 Spring 2006
10 minutes. 10 points.
NAME: