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The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have...

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 56 ounces and a standard deviation of 9 ounces.

Use the Empirical Rule and a sketch of the normal distribution in order to answer these questions.

a) 68% of the widget weights lie between  and

b) What percentage of the widget weights lie between 38 and 65 ounces?  %

c) What percentage of the widget weights lie below 65 ?  %

Math   Statistics-And-Probability   
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