The distribution of cholesterol levels in teenage boys is approximately normal with µ = 170
and η = 30 (source: u. s. national center for health statistics). levels above 200 warrant
attention. what percent of teenage boys have levels between 170 and 225?

When drawing a trend line for a series of data on a scatter plot, which of the following is true? a. there should be an equal number of data points on either side of the trend line. b. all the data points should lie on one side of the trend line. c. the trend line should not intersect any data point on the plot. d. the trend line must connect each data point on the plot.

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then