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Unformatted text preview: reaching the station, the person needs 2 minutes to board the train. Thus if a person is to catch the train, X must be no greater than 15 minutes. (a) What is the pdf? Draw a sketch. (b) Find the cdf. Draw a sketch. (c) What is the probability that the person catches the train? 3 Q6. Mueller (1950) describes an experiment in which white rats were periodically conditioned.The duration of time in seconds between presses by a rat on a bar has an exponential distribution with parameter θ = 0 . 2 . (a) What is the pdf? Draw a rough sketch. (b) Find the cdf. Draw a rough sketch. (c) Find the probability that it takes a rat between 1 and 3 seconds to press the bar. 4...
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 Fall '08
 Prof
 Statistics, Normal Distribution, Probability theory, Distribution function, probability density function, Cumulative distribution function

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