Answer
37 residents.
Work Step by Step
$E(X)=10$ and $p=27$% $=0.27$
$E(X)=np$
$10=n\times0.27$
$n=\frac{10}{0.27}\approx37$
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 6 - Section 6.2 - Assess Your Understanding - Applying the Concepts - Page 346: 54a
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