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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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Question

In a bag we have 17 balls numbered by 5 + k • 125, k = 0, ..., 16, i.e. by 5,130, 255, 380, 505,.. 1755, 1880, 2005. If we select several balls at random, what is the smallest n of balls needed to guarantee that the selection contains at least one pair of balls that add up to 2010?

O A. 7 O B. 8 O C. 10 O D. 11 O E. 17

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