Glossary

Time Series

Time Series:

Time series data are measurements of a variable taken at regular intervals over time. Time series are represented as sequences of values like x(1), x(2), … .

A wide class of practically important data are represented as time series: economic and social data, weather records, sports data, to name a few.

Some simple examples of time series are records on monthly unemployment rates, average daily atmospheric temperature, or monthly scores of a football team.

In statistics, time series are often considered as realizations of random series .

Test Yourself

Planning on taking an introductory statistics course, but not sure if you need to start at the beginning? Review the course description for each of our introductory statistics courses and estimate which best matches your level, then take the self test for that course. If you get all or almost all the questions correct, move on and take the next test.