Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 4 - Review - Review Exercises - Page 248: 15d

Answer

See the picture.

Work Step by Step

New cars total: $11+78+118=207$ Relative frequency for "Not too satisfied", given the car is new: $\frac{11}{207}\approx0.0531$ Relative frequency for "Pretty satisfied", given the car is new: $\frac{11}{207}\approx0.3768$ Relative frequency for "Extremely satisfied", given the car is new: $\frac{11}{207}\approx0.5700$ Used cars total: $25+79+85=189$ Relative frequency for "Not too satisfied", given the car is used: $\frac{25}{189}\approx0.1323$ Relative frequency for "Pretty satisfied", given the car is used: $\frac{79}{189}\approx0.4180$ Relative frequency for "Extremely satisfied", given the car is used: $\frac{85}{189}\approx0.4497$
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