In a recent survey of a fair stratified random sample of the population, a question appeared as: Italic text startDo you plan to vote in favour of the speed limit change? Yes/NoItalic text End Italic text startA scientist found the following number of responses per stratum:Italic text End Age 20-24Age 25-29Age 30-34Yes45805No252515No response251055What are two reasons a respondent might not answer this question? What are the strata in this sample? If a person is picked at random from the sample, what is the probability that they are age 25-29 or did not respond to this question?

The data is shown below:Age 20-24Age 25-29Age 30-34Yes45805No252515No response251055

Answered: Age 20-24 Age 25-29 Age 30-34 Yes 45…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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In a recent survey of a fair stratified random sample of the population, a question appeared as:
Italic text startDo you plan to vote in favour of the speed limit change? Yes/NoItalic text End
Italic text startA scientist found the following number of responses per stratum:Italic text End

	Age 20-24	Age 25-29	Age 30-34
Yes	45	80	5
No	25	25	15
No response	25	10	55

What are two reasons a respondent might not answer this question?
What are the strata in this sample?
If a person is picked at random from the sample, what is the probability that they are age 25-29 or did not respond to this question?

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If three people are picked at random from the sample, what is the probability that at least one did not respond to this question? Bold text start(

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