The lengths of human pregnancies can be described by a Normal model with a mean of 268 days and a standard deviation of 15 days.What percentage can we expect for a pregnancy that will last at least 300 days?

A) 98.34%
B) 1.66%
C) 1.79%
D) 48.34%
E) 1.99%

Clarence has been investing $1,000 at the end of every year at 11% compounded annually. With today's contribution his investment has grown to $44,500. How many years ago did he make the first contribution?

A) 26 years
B) 49 years
C) 17 years
D) 31 years
E) 12 years

Crazy Quilts takes inventory semiannually. Beginning inventory for the year was $32,000. Inventory at the end of the first six months was $27,000. Ending inventory for the year was $39,000. Compute the average inventory for Crazy Quilts.​