#### Answer

$0.333$

#### Work Step by Step

If the professor said the truth, there are 3 opportunities: heads-tails, tails-heads, heads-heads. One outcome is good for us ehre, therefore the probability of both of them being heads is: $\frac{1}{3}=0.333$

Published by
Pearson

ISBN 10:
0321836960

ISBN 13:
978-0-32183-696-0

$0.333$

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