20% of the US population over the age of 10 years old have been diagnosed with depression....

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20% of the US population over the age of 10 years old have been diagnosed with depression.A sample size of 1000 people in this population have been randomly selected.

a. What is the approximate probability that at least 200 people in the random sample have depression?

b. What is the approximate probability that 150 to 250 people in the random sample have depression?

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A Pathway To Introductory Statistics

ISBN: 9780134107172

1st Edition

Authors: Jay Lehmann

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Question Posted: Aug 05, 2013 03:56 AM

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20% of the US population over the age of 10 years old have been diagnosed with depression....

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Computation of the following a We know that For x200 From the normal ...View the full answer

A Pathway To Introductory Statistics

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