What is the probability that two bulbs will be defective? What is the probability that at least one bulb will be defective? What is the probability that more than one bulb will be defective, given that at least one is defective?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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A package of 6 bulbs are tested where the probability of an individual bulb is defective is

0.05. (That is, 5% of all the bulbs manufactured are defective).

  1. What is the probability that two bulbs will be defective? 
  2. What is the probability that at least one bulb will be defective? 
  3. What is the probability that more than one bulb will be defective, given that at least one is defective? 
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