a-study-on-cholesterol-levels-found-that-the-total-cholesterol-levels-of-adult-m

Question

A study on cholesterol levels found that the total cholesterol levels of adult males follow a bell-shaped distribution, with a mean of $200 mg slash dL$ and a standard deviation of $40 mg slash dL$ . According to the empirical rule, what percentage of adult males have total cholesterol levels within $2$ standard deviations of the mean?

Accepted Answer

$95 percent sign$

Answer

$95 percent sign$

Answer

$95 percent sign$

Answer

$95 percent sign$