A laboratory technician is presented with 31 diagnostic tests for virus X, 10 of which are positive. If she selects 5 out of the 31 tests at random, find the probability that her sample contains precisely 3 positive reports. (Give your answer in 2 d.p)
A laboratory technician is presented with 31 diagnostic tests for virus X, 10 of which are positive. If she selects 5 out of the 31 tests at random, find the probability that her sample contains precisely 3 positive reports. (Give your answer in 2 d.p)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A laboratory technician is presented with 31 diagnostic tests for virus X, 10 of which are positive. If she selects 5 out of the 31 tests at random, find the probability that her sample contains precisely 3 positive reports. (Give your answer in 2 d.p)
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