need your help with the question attached. Please show the work done because I need to understand them. Thank you!

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter0: Preparing For Algebra
Section: Chapter Questions
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Q13) I need your help with the question attached. Please show the work done because I need to understand them. Thank you!

Twenty light bulbs are tested to see if they last as long as the manufacturer claims
they do. Three light bulbs fail the test. Two light bulbs are selected at random without
13.
replacement.
a) What is the probability both light bulbs failed the test?
b) What is the probability at least one light bulb passed the test?
Transcribed Image Text:Twenty light bulbs are tested to see if they last as long as the manufacturer claims they do. Three light bulbs fail the test. Two light bulbs are selected at random without 13. replacement. a) What is the probability both light bulbs failed the test? b) What is the probability at least one light bulb passed the test?
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