#### Answer

0.1571.

#### Work Step by Step

$z_1=\frac{value-mean}{standard \ deviation}=\frac{124-100}{15}=1.6.$
$z_2=\frac{value-mean}{standard \ deviation}=\frac{112-100}{15}=0.8.$ Using the table, the value belonging to 1.6: 0.9452, the value belonging to 0.8: 0.7881. 0.9452-0.7881=0.1571.