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Online Quiz 6 - Maple T.A Gradebook...

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System Homepage » Class Homepage » Student Details » Student Assignment Details Stat 230 W09 : Gradebook Welcome Po-Wei Chuang [ My Profile ] Assignment detail for Po-Wei Chuang in Online Quiz 6: Po-Wei Chuang Login: pchuang Email: [email protected] Student ID: 20260696 Assignments completed: 22 Assignments active: 0 Question Grade 1 Find the value of k (3 decimals or a proper fraction) that makes the following function a pdf: Your Answer: 0.222 Correct Answer: 0.222±0.005 Comment: To find k , integrate the given function over [- ,+ ] (which means over [0,3] since f(x) = 0 outside that interval), set the result equal to 1 and solve for k. Set equal to 1 and solve for k: or 0.222 . Instructors Comment: 1.0 2 Suppose X has an exponential distribution with probability density function f(x) = 2 e 2 x for x > 0. Then P(X > 8 | X > 12) is: Your Answer: Correct Answer: e --8 Comment: P(X>8|X>12) = (since 12 > 8) 0.0 Gradebook Help Logout Maple T.A. - Gradebook http://maple-ta4.math.uwaterloo.ca:8080/mapleta/gradebook/gr...
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