Refusal rate in telephone polls is known to be approximately 20%. A newspaper report indicates that 50

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Refusal rate in telephone polls is known to be approximately 20%. A newspaper report indicates that 50 people were interviewed before the first refusal.

(a) Comment, on the validity of the report. Use a probability in your argument.

(b) What is the expected number of people interviewed before a refusal?

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Fundamentals of Aerodynamics

ISBN: 978-0070016798

2nd Edition

Authors: J. Anderson

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Question Posted: Feb 03, 2011 05:32 AM

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Refusal rate in telephone polls is known to be approximately 20%. A newspaper report indicates that 50

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a The number of people interviewed b...View the full answer

Fundamentals of Aerodynamics

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