Junior Achievement USA and the Allstate Foundation surveyed teenagers aged 14 to 18 and asked at what

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Junior Achievement USA and the Allstate Foundation surveyed teenagers aged 14 to 18 and asked at what age they think that they will become financially independent (USA today, April 30, 2012). The responses of 944 teenagers who answered this survey question are as follows.

Age

Financially Number of

Independent Responses

16 to 20 .......... 191

21 to 24 .......... 467

25 to 27 .......... 244

28 or older ......... 42

Consider the experiment of randomly selecting a teenager from the population of teenagers aged 14 to 18.

a. Compute the probability of being financially independent for each of the four age categories.

b. What is the probability of being financially independent before the age of 25?

c. What is the probability of being financially independent after the age of 24?

d. Do the probabilities suggest that the teenagers may be somewhat unrealistic in their expectations about when they will become financially independent?


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Essentials Of Statistics For Business And Economics

ISBN: 9781305081598

7th Edition

Authors: David Anderson, Thomas Williams, Dennis Sweeney, Jeffrey Cam

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