The Basic Practice of Statistics 7th Edition

Published by W. H. Freeman
ISBN 10: 1-46414-253-X
ISBN 13: 978-1-46414-253-6

Chapter 3 - The Normal Distributions - Apply Your Knowledge: 3.2a


The curve satisfies the requirements for a density curve because the curve is entirely above the horizontal axis and the total area under the curve is 1.

Work Step by Step

Area under the curve = $base \times height$ = $5 \times (1/5)$ = $1$
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