Posted by kitkat on Wednesday, January 19, 2011 at 6:27pm.
A manufacturer of cereal finds that the masses of cereal in a company's 200g package are normally distributed with a mean of 200g and a standard deviation of 16.3g
a) What proportion of these boxes contain between 183.7g and 216.3g of cereal?
b) What is the probability that a box selected at random contains more than 216.3g of cereal?

math 12  PsyDAG, Thursday, January 20, 2011 at 5:33pm
Z = (scoremean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to these Z scores.

math 12  Anonymous, Thursday, January 8, 2015 at 8:55pm
a manufacturer of cereal finds that the masses of cereal in the company's 200g packages are normally distributed with a mean of 200 g and a standard deviation of 16.3 g
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