#### Answer

0.7257.

#### Work Step by Step

$z=\frac{value-mean}{standard \ deviation}=\frac{91-100}{15}=-0.6.$ Using the table, the value belonging to -0.6: 1-0.2743=0.7257.

Published by
Pearson

ISBN 10:
0321836960

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

0.7257.

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