It's the first week of the 2025 NFL season and we're already two games in. Here's our tips for your lineup for the rest of the week.

Use Microsoft Excel to calculate EBITDA (earnings before interest, tax, depreciation, and amortization) profit margin.

The line of best fit is an output of regression analysis that represents the relationship between two or more variables in a dataset.

How do you calculate a least squares regression line by hand? When calculating least squares regressions by hand, the first step is to find the means of the dependent and independent variables.

Carnival Cruise Line has two more Excel class ships under construction/on order. Carnival Festivale will join the fleet in the spring of 2027 with Carnival Tropicale joining a year later in 2028.