Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 12 - Data Analysis and Probability - 12-5 Samples and Surveys - Practice and Problem-Solving Exercises - Page 745: 23

Answer

By definition, random means that something is not pre-determined or completely the same as something else.

Work Step by Step

Also, the composition of the students surveyed is likely not the same (the number of boys and girls), so that could explain why the two groups have different results.
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