STA257H1 Lecture Notes - Lecture 10: Random Variable
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Do the assigned exercises from the textbook. Use extra tas" office hours: given that a and b are independent with (cid:4666)(cid:1827) (cid:1828)(cid:4667)=(cid:882). (cid:890) and (cid:4666)(cid:1828)(cid:4667)=(cid:882). (cid:885), find. P(a): given p(aub) = 0. 7 and (cid:4666)(cid:1827) (cid:1828)(cid:4667)=(cid:882). (cid:891), find p(a), suppose that customers arrive randomly, during mid-day, at a certain service counter, at an average rate of 20 per hour. What is the probability of at least 2 customers arriving during the next 15 minutes: a student answers a multiple-choice examination question that offers four possible answers. Suppose that the probability that the student knows the answer to the question is 0. 8 and the probability that the student will guess is 0. 2. Assume that if the student guesses, the probability of selecting the correct answer is 0. 25. If the student correctly answers a question, what is the probability that the student really knew the correct answer: suppose x is a continuous random variable.
