Answer
$P(X \geq 7) = 0.055$
Work Step by Step
P(a randomly selected rental unit has seven or more rooms) corresponds to bars No. 7, 8 and 9 of the histogram. Hence:
$P(X \geq 7) = P(X=7) + P(X=8) + P(X=9)$
= 0.037 + 0.013 + 0.005
= 0.055
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 6.1 - Assess Your Understanding - Applying the Concepts - Page 332: 26c
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