Author Question: By law, a box of cereal labeled as containing 20 ounces must contain at least 20 ounces of cereal. ... (Read 427 times)

CORALGRILL2014 · **on:** Jun 24, 2018

By law, a box of cereal labeled as containing 20 ounces must contain at least 20 ounces of cereal. The machine filling the boxes produces a distribution of fill weights with a mean equal to the setting on the machine and with a standard deviation equal to 0.02 ounce. To ensure that most of the boxes contain at least 20 ounces, the machine is set so that the mean fill per box is 20.06 ounces. Assuming nothing is known about the shape of the distribution, what can be said about the proportion of cereal boxes that contain less than 20 ounces.

A) The proportion is less than 2.5. B) The proportion is at least 89.
C) The proportion is at most 5.5. D) The proportion is at most 11.

Question 2

Classify the following random variable according to whether it is discrete or continuous.
The number of phone calls to the attendance office of a high school on any given school day

A) continuous B) discrete