A quick primer on regression analysis

At Journalist's Resource, Leighton Walter Kille and John Wihbey explain the basics of a common statistical tool, and use Microsoft Excel to show the correlation between interest rates and median home prices: "The technique is well known to data journalists, but even savvy reporters may feel a measure of discomfort when they come across it — they seldom have the expertise or time needed to understand advanced mathematics or dig into a study’s original methods and data."