The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have mean of 60 ounces and a standard deviation of 10 ounces.
Use the Standard Deviation Rule, also known as the Empirical Rule.
Suggestion: sketch the 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 30 and 70 ounces?
%
c) What percentage of the widget weights lie below 80 ?
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