GCSE Maths (AQA)

435 videos | 33 hours

Mean

Please subscribe to watch this video.

This, and all other videos, are included in our premium subscriptions.

Premium accounts get access to all videos.

Statistics Statistics

Mean

4:08 Mean & Averages
Spec S4
Previous Estimations from Histograms Next Mean from Frequency Tables
  • The mean of a set of quantitative data is a measure of central tendency
  • The mean is calculated by summing all the data values and dividing by the number of data values
  • The mean can only be calculated for quantitative data, not categories or names
  • The mean is not necessarily equal to any of the individual data values
  • The mean describes what each data value would be if they were all balanced out to be the same without changing their total
  • The mean can be calculated for continuous or discrete data sets
  • To calculate the mean, count the number of data values, find the sum of the data values, and divide the sum by the number of data values
  • In the example given, the mean distance the paper airplanes flew for is 2.5875 meters

Please subscribe to access these revision notes.

This, and all other video notes, are included in our premium subscriptions.

Premium accounts get access to all videos and revision notes.