Numerical data

Numerical data (or quantitative data) is data measured or identified on a numerical scale. Numerical data can be analyzed 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.

Examples of quantitative data would be:

• Counts
  • 'there are 643 dots on the ceiling'
  • 'there are 25 pieces of bubble gum'
  • 'there are 8 planets in the solar system'
• Measurements
  • 'the length of this table is 1.892m'
  • 'the temperature at 12:00 p.m. was 18.9° Celsius'
  • 'the average flow yesterday in this river was 25 mph (miles per hour)'

After the data is collected the researcher will make an analysis of the quantitative data and produce statistics.

See also

• Level of measurement
• Quantitative property
• Qualitative data

Bibliography

http://regentsprep.org/REgents/math/ALGEBRA/AD1/qualquant.htm

http://web.cortland.edu/andersmd/stats/qual.html

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