A relative frequency distribution lists the categories and their counts.

The mean of the sampling distribution of the difference is equal to one.

{Gym Visits Narrative} Find the mean μ and the standard deviation σ of this distribution.

A researcher collected data on the homicide rate for 10 different cities. The researcher was interested in the effect that policing and the percent of households on public assistance on the homicide rate. The following data was collected. What is the regression slope for percent on public assistance?

Your client wants to invest a $250,000 inheritance and grow it to $325,000. Rounded to the nearest month, how long will this take if the investment earns 7% compounded annually?

{Online Bankers Narrative} Find the probability that all 15 have profited from insider information.