Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 11 - Probability and Statistics - 11-2 Probability - Practice and Problem-Solving Exercises - Page 685: 8

Answer

Experimental probability of heads is $0.47$ or $47\%$ while the probability of tails is $0.53$ or $53\%$.

Work Step by Step

Heads occurred $161$ times and tails occurred $179$ times. Add the number of heads and tails to find the total number of tosses: $=161+179=340$ tosses. To find the experimental probability of heads: $P(\text{heads)}=\dfrac{\text{number of times heads came out}}{\text{total number of tosses}}\\\\ P(\text{heads)}=\dfrac{179}{340} \approx 0.47$ To find tails experimental probability: $P(\text{tails)} = \dfrac{\text{number of times tails came out}}{\text{total number of tosses}}\\\\ P(\text{tails})=\dfrac{179}{340} \approx 0.53$
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