Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 11, Introduction to Genetics - Assessment - 11.2 Applying Medel's Principles - Understand Key Concepts/Think Critically - Page 332: 9



Work Step by Step

To calculate the probability of getting the heads on two consecutive coin flips, you multiply together the individual probability of getting heads on a single coin flip, which is $\frac{1}{2}$. If we are calculating for two consecutive coin flips of getting a head on each coin flip, we multiply $\frac{1}{2}$ by $\frac{1}{2}$. So: $$\frac{1}{2} \times \frac{1}{2} = \frac{1}{4}$$ The probability of getting a heads twice on two consecutive coin flips is $\frac{1}{4}$.
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