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

weights have a mean of $65$ ounces and a standard deviation of $6$ ounces.

Use the Standard Deviation Rule, also known as the Empirical Rule.

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

a$)95\%$ of the widget weights lie between

and

b$)$ What percentage of the widget weights lie between $47$ and $77$ ounces?

$\%$

c$)$ What percentage of the widget weights lie below $71?$

$\%$