Basic Probability, Central Limit Theorem, Sampling and Indexes

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Basic Probability, Central Limit Theorem, Sampling and Indexes

Mary Margaret Maloney

University of Phoenix

QRB/501 - Quantitative Reasoning for Business

Professor Robert Batiste

August 3, 2009

Sevilla & Somers.

Topic 18 - Basics of Probability

Exploration 3. The following table contains information on the 2002 resident

population of the U.S., by age. (Source: The New York Times Almanac 2004,

page 277).

AGE

Younger than 18 years old

18 to 24

years old

25 to 44

years old

45 to 64

years old

65 years

and older

Number in Thousands

1,107,108

452, 196

1,270,419

1,068,243

588,542

Age Count Cumulative Count

Younger than 18 years old 1,107,108 1,107,108

18 to 24 years old 452,196 1,559,304

25 to 44 years old