Assume the Distribution Is Normal $\$ 1100$ With a Standard Deviation Of

Multiple Choice

Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent.
-The mean monthly income of trainees at a local mill is $\$ 1100$ with a standard deviation of $\$ 150$ . Find the probability that a trainee earns less than $\$ 900$ a month.

A) $8 \%$
B) $90 \%$
C) $19 \%$
D) $9 \%$