The Hourly Production of a Plastic Cup Company Is Tracked

Multiple Choice

The hourly production of a plastic cup company is tracked over several months and is found to be normally distributed.Given a mean of 15,630 cups and a standard deviation of 251 cups, about what percent of all hours of production should produce between 15,379 and 15,881 cups?

A) 50%
B) 68%
C) 75%
D) 95%
E) nearly 100%