Under normal operating conditions 1.5% of the transistors produced in a factory are defective. An inspector takes a random sample of forty transistors and finds that two are defective. a) What is the probability that exactly two transistors will be defective from a random sample of forty under normal operating conditions? b) What is the probability that more than two transistors will be defective from a random sample of forty if conditions are normal?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Under normal operating conditions 1.5% of the transistors produced in a factory
are defective. An inspector takes a random sample of forty transistors and finds
that two are defective.
a) What is the probability that exactly two transistors will be defective from a
random sample of forty under normal operating conditions?
b) What is the probability that more than two transistors will be defective from
a random sample of forty if conditions are normal?
Transcribed Image Text:Under normal operating conditions 1.5% of the transistors produced in a factory are defective. An inspector takes a random sample of forty transistors and finds that two are defective. a) What is the probability that exactly two transistors will be defective from a random sample of forty under normal operating conditions? b) What is the probability that more than two transistors will be defective from a random sample of forty if conditions are normal?
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