What is the probability that, on any one day, the sales volume will be at least 1,300 units?

Based upon extensive historical evidence, a company’s daily sales volume is known to be normally distributed with a mean of 1,728 units and a standard deviation of 273 units.

What is the probability that, on any one day, the sales volume will be at least 1,300 units?
A . 5.82%
B . 73.89%
C . 44.18%
D . 94.18%

Answer: D