At One High School, Students Can Run the 100-Yard Dash $50 \%$

Multiple Choice

At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of .9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are indicated. Round to the nearest whole percent.
-At least 14.3 seconds

A) $50 \%$
B) $14 \%$
C) $16 \%$
D) $84 \%$