Example 37. (a) 4 tubes are selected at random from 20 tubes containing 5 defective tubes. Determine the probability that (i) none is defective. (ii) exactly one is defective. (b) The chances of golui

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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Example 37. (a) 4 tubes are selected at random from 20 tubes containing 5
defective tubes. Determine the probability that (i) none is defective. (ii) exactly
one is defective.
(6) The chances of solving a problem in Mathematics by four students S1, S»
1 1 1 1
3'4'5'6
S, S,
respectively. What is the probability
are
Transcribed Image Text:Example 37. (a) 4 tubes are selected at random from 20 tubes containing 5 defective tubes. Determine the probability that (i) none is defective. (ii) exactly one is defective. (6) The chances of solving a problem in Mathematics by four students S1, S» 1 1 1 1 3'4'5'6 S, S, respectively. What is the probability are
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