Statistics for Economics and Business 2 (ECON2206)
Faculty of Economics and Management Science (FEMS)
Semester: Second Semester
Level: 200
Year: 2016
Continuous assessment
Instruction: answer all
EXERCISE 1: (15 marks)
1. The random variable X has a poisson distribution with mean 1.7. determine the
probability P(X>3).
2. The random variable Y has a poisson distribution with mean 1.4. determine the
probability that Y takes a value greater than 4, but less than 7.
3. The discrete random variable X has a binomial distribution with n=60 and p=0.02
determine P(X=1)
EXERCISE 2: (15 marks)
Three letters are chosen at random (without replacement) from the word STATISTICS. What
is the probability that?
I. They are all different
II. Exactly two are the same
THE UNIVERSITY OF BAMENDA
FACULTY OF ECONOMICS AND MANAGEMENT SCIENCES
Semester
Course : Statistics for Econs and Business 2
Course : ECON206
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