Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 4 - Section 4.1 - Experiment, Outcome, and Sample Space - Exercises - Page 133: 4.8

Answer

Let us denote Y = students that suffer from math anxiety, N = students do not suffer from math anxiety. Possible outcome : {YY, YN, NY, NN} a. Both students suffer from math anxiety={YY} = $\frac{1}{4}$ b. Exactly one student suffers from math anxiety={YN, NY} =$\frac{2}{4}$ c. The first student does not suffer from math anxiety and second suffers from math anxiety={NY} =$\frac{1}{4}$ d. None of the students suffer from math anxiety={NN} =$\frac{1}{4}$
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Work Step by Step

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