Trying to calculate an intermediate value between known data points on a two dimensional grid? You’ll need to perform bilinear interpolation. In this article, you will learn about bilinear interpolation
In the real world, relationships are not always linear. For instance, treasury yields, the spread of infectious disease, etc., often exhibit a non linear trend. This article explores non linear
While working with data in Excel, you will frequently need to estimate values between two known points. Interpolation is useful in this situation. This article explores linear interpolation and uses
A confidence interval helps you understand the accuracy of your data estimates beyond simple averages. In this tutorial, you’ll understand what a confidence interval is and how to calculate confidence
When constructing an investment portfolio, reducing risk is as important as increasing returns. The minimum variance portfolio offers the least possible risk for a certain level of expected return. This
Is multicollinearity misleading your regression results? The Variance Inflation Factor (VIF) helps you determine the degree of multicollinearity between independent variables and interpret the correct regression results. Although Excel doesn’t
Managing business performance requires comparing budgeted and actual results. This article explains budget vs actual variance and teaches how to calculate the budget vs. actual variance formula in Excel. In
A correlation graph, also known as a scatter plot, is a great way to visualize the relationship between two variables. A correlation graph can be made quickly with Excel’s charting
A correlation matrix is the ideal tool for examining data containing multiple variables and determining their relationships. This tutorial explores how to make correlation matrix in Excel with built in