A supplier delivers an order for 20 electric toothbrushes to a store. By accident, three of the electric toothbrushes are defective. What is the probability that the first two electric toothbrushes sold are defective?Multiple Choice3/20 or 0.153/17 or 0.1761/4 or 0.253/190 or 0.01579

Given that N = 20 , # of defective = 3

Answered: A supplier delivers an order for 20…

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 supplier delivers an order for 20 electric toothbrushes to a store. By accident, three of the electric toothbrushes are defective. What is the probability that the first two electric toothbrushes sold are defective? Multiple Choice 3/20 or 0.15 3/17 or 0.176 1/4 or 0.25 3/190 or 0.01579