On an average, a waiter gets no tip from two of his customers on Saturdays. What is the probability that on next Saturday, he will get no tip from three of his customers?
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2 marksStatisticsRandom variables and standard distributionsThe Poisson distributionModerateabout 2 min
DSE 2013 Question 46: Random variables and standard distributions
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On an average, a waiter gets no tip from two of his customers on Saturdays. What is the probability that on next Saturday, he will get no tip from three of his customers? (A) 9/2 e⁻³ (B) 2e⁻³ (C) 4/3 e⁻² (D) 3e⁻²
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What this question tests
This question is on The Poisson distribution, part of Random variables and standard distributions in Statistics.
Counts of rare events, where mean equals variance.
TestStop has 9 past-paper questions on this subtopic.
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