Correlation measures the linear relationship between two variables. It gives an indication of the strength of the relationship by measuring and relating the variance of each. Correlation answers the ...

If you refer to the same value in an Excel sheet often, treat it as a constant. Anyone who uses Excel, even just a bit, knows how to name a cell or range and then use that name in formulas. It’s ...

An Excel pie chart displays categories of data as wedges in a circular graph. This format allows users to quickly see the contribution each category makes to the total figure and a correlation of ...

In October of 2001 , we described in this column how to use the dollar sign ($) to make an Excel formula constant—so when you copy a formula to a different location on a spreadsheet it won’t ...

Leslie Kramer is a writer for Institutional Investor, correspondent for CNBC, journalist for Investopedia, and managing editor for Markets Group. Correlation measures the linear relationship between ...