An urn contains 15 balls numbered 115. We select three balls without replacement. Find the probability that
Question:
An urn contains 15 balls numbered 1–15. We select three balls without replacement.
Find the probability that
(i) at least one number drawn is a prime;
(ii) exactly one number drawn is a prime.
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Related Book For 
Introduction To Probability Volume 2
ISBN: 9781118123331
1st Edition
Authors: Narayanaswamy Balakrishnan, Markos V. Koutras, Konstadinos G. Politis
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