The Heart of Mathematics: An Invitation to Effective Thinking, WileyPLUS NextGen Card with Loose-leaf Set Single Semester: An Invitation to Effective Thinking (Key Curriculum Press)

4th Edition

ISBN: 9781119760054

Author: Burger, Edward B. , Starbird, Michael

Publisher: Wiley (WileyPLUS Products)

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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Textbook Question

Chapter 8.1, Problem 5MS

Party time. At a nephew’s party, you decide to write down everyone’s birthday. Here are your results:

Julia1 Dec. 18 Isabel Sept. 1

Max Aug. 26 Coin Dec. 31

Melinda Oct. 1 Alexandra Mar. 14

Zack Jan. 17 Philip Dec. 9

Drew Apr. 18 Victoria July 10

Margaret June 16 Douglas Oct. 31

What percentage of children have their birthdays in December? In February? What percentage have their birthdays in the same month as another child at the party?

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Chapter 8.1, Problem 4MS

Chapter 8.1, Problem 6MS

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Chapter 8 Solutions

The Heart of Mathematics: An Invitation to Effective Thinking, WileyPLUS NextGen Card with Loose-leaf Set Single Semester: An Invitation to Effective Thinking (Key Curriculum Press)

Ch. 8.1 - Doors galore. The 21st-century version of Lets...Ch. 8.1 - Birthday surprise. How many people would you need...Ch. 8.1 - Opposite of heads. Suppose you flip a coin 100...Ch. 8.1 - Penny percent. Suppose you flip a penny 50 times,...Ch. 8.1 - Party time. At a nephews party, you decide to...Ch. 8.1 - Flipping Lincoln. Flip a penny 100 times and...Ch. 8.1 - Flashing cards. Shuffle a standard deck of 52...Ch. 8.1 - King for a day. Remove three cards from a deck of...Ch. 8.1 - A card deal stick. Remove three cards from a deck...Ch. 8.1 - A card deal switch. Remove three cards from a deck...

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