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Unformatted text preview: that at least 40 seconds will elapse between any two calls. 4. Let X be the random variable with meaning “time (mins) to get a call to a healthcare provider”. This question is regarding exponential distribution. It is given that the mean time between calls is 12 mins. Please answer the questions. a. What is the probability of getting no calls within 30 mins (or unit times) ? b. What is the probability of getting at least one call within a 10 mins interval? c. What is the probability of getting the first call within 5 to 10 mins after opening? d. What is the length of interval such that the probability of getting at least one call is 0.90?...
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This note was uploaded on 04/08/2012 for the course COMP 211 taught by Professor Dr.kwok during the Spring '12 term at Hong Kong Polytechnic University.
 Spring '12
 Dr.Kwok

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