# Excel Statistics – Calculating the Covariance and the Correlation

Kornilios Ampatzis/ April 17, 2019/ Tutorials/ 0 comments

In statistics, covariance and correlation are measures of how much two random variables change together. A positive number would indicate a positive linear relationship between the variables and a negative number would indicate the opposite.

# Excel Statistics – Calculating the Variance

Kornilios Ampatzis/ April 17, 2019/ Tutorials/ 0 comments

One of the most useful measures in statistics is that of variance. It is a measure that is used to quantify the amount of variation or dispersion of a set of data values. I’ll try to explain what this means with an example, but there are plenty of other online sources if you want to explore the math behind it.

# Excel Statistics – Calculating the Standard Deviation

Kornilios Ampatzis/ April 17, 2019/ Tutorials/ 0 comments

One of the most useful measures in statistics is that of standard deviation. It is a measure that is used to quantify the amount of variation or dispersion of a set of data values. I’ll try to explain what this means with an example, but there plenty of other online sources if you want to explore the math behind it.

# Advanced Lookup Functions Combinations: Part 3

Kornilios Ampatzis/ April 17, 2019/ Tutorials/ 0 comments

We have reached the end of our quest for the best lookup function, where we will talk about the combination of INDEX and MATCH. In the current lesson, we will use INDEX with dual MATCH functions, to achieve a matrix lookup functionality. But you can easily skip one of the two MATCH functions, and replace it with a static value if you are not interested in a matrix lookup.