Numerical data (or quantitative data) is data measured or identified on a numerical scale. Numerical data can be analysed using statistical methods, and results can be displayed using tables, charts, histograms and graphs. For example, a researcher will ask a questions to a participant that include words how often, how many or percentage. The answers from the questions will be numerical.
An example of quantitative data would be: there are 643 ninjas on the ceiling or there are 735 pirates with wenches. or 'there are 1010100101009928794629872983725885875738384477473828728738784958498498387874827837837483748378267468737875837483478473847384783783785784794895893840940293092409308593859384908304930490395093058308080397984375984709847098704985709847509843790847590578430948375094857093487503987450983475098437509843750958570984370984687098647908570984709385703984570984760984670984750958437509847509834709834709837409879857712345676543215638792876348763784687687658578479874987765243235465756542323143564848959050493994059598485989587597898377983987498247923874982374985798693627683764873687236847628736482736487236487236847236857698759487598374987329873459874958732498579384579834759348759837872638745876548765874687267635764576253746537 grains of sand on the earth' <--FACT
After the data is collected the researcher will make an analysis of the quantitative data and produce statistics.