At one high school, the mean time for running the 100-yard dash is  with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Between 17 and 17.9 seconds

A. .5%
B. 13.5%
C. 16%
D. 2%


Answer: D

Mathematics

You might also like to view...

Determine the indicated arc or angle.Find ?ABC.

A. 37° B. 32° C. 58° D. 74°

Mathematics

Solve the problem by integration.The force F (in N) applied by a stamping machine in making a certain computer part is   where x is the distance (in cm) through which the force acts. Find the work done by the force from  to 

A. 16.2515 N? cm B. 0.0313 N? cm C. 0.1126 N? cm D. 0.0052 N? cm

Mathematics

What part of the object or set of objects is shaded?

A.
B.
C.
D.

Mathematics

Write the percent as a fraction in lowest terms. 12.5%

A.
B.
C.
D.

Mathematics