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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 54 ounces and a standard deviation of 9 ounces.

Use the Empirical Rule, find

a) 68% of the widget weights lie between _____ and ______

b) What percentage of the widget weights lie between 27 and 63 ounces? _____ %

c) What percentage of the widget weights lie above 36 ? _____ %

Suggestion: sketch the distribution in order to answer these questions.

Math   Statistics-And-Probability   
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