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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

1. Angles of Triangles

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Exercise 52 Page 343

Look for the option that does not introduce bias.

D

Practice makes perfect

Options A, B, and C would survey only a restricted group of customers. To get a reliable result, Mr. Glover should aim for surveying customers with different habits, so surveying at different days and times is a good choice. The correct answer choice is D.

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Exercises p.339-343