A bottler of drinking water fills plastic bottles with a mean volume of 1001 milliliters (mL) and standard deviation 6 mL. The fill volumes are normally distributed. What
Proportion of bottles have volumes less than 1001 mL?
A) 0.5000
B) 0.5438
C) 1.0000
D) 0.9772

Question

Quizplus · Accepted Answer

In a normal distribution, the mean divides the distribution in half. Therefore, 50% of the values lie below the mean. Since the mean volume is 1001 mL, 50% of the bottles have volumes less than 1001 mL.

A Bottler of Drinking Water Fills Plastic Bottles with a Mean