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
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
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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Multiple Choice
3/20 or 0.15
3/17 or 0.176
1/4 or 0.25
3/190 or 0.01579"
Transcribed Image Text: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
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