Statistics: Informed Decisions Using Data (4th Edition)

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

Chapter 5 - Review - Review Exercises - Page 316: 19

Answer

$P(I~match~the~winning~sequence)=\frac{1}{10,000}=0.0001$

Work Step by Step

- The sample space: for each digit of the sequence there are 10 possibilities (repetition of digits is allowed). Using the Multiplication Rule of Counting (see page 298): There are $10\times10\times10\times10=10,000$ sequences. - With a single ticket: $N(I~match~the~winning~sequence)=1$ Using the Classical Method (page 259): $P(I~match~the~winning~sequence)=\frac{N(I~match~the~winning~sequence)}{N(S)}=\frac{1}{10,000}=0.0001$
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