Averages from tables 1 (Edexcel GCSE Maths): Flashcards

How many pieces of data have a particular value

No, frequency is not a data value

Value that appears most frequently in the data set

Find highest frequency; mode is corresponding data value

Difference between highest and lowest data values

Highest data value minus lowest data value

Middle value when all data values are arranged in order

Between $\frac{n}{2}$th and $\frac{n}{2} + 1$th values

Count through frequencies to reach middle position

Average using all data values and their frequencies

Total of $(f \times x)$ divided by total frequency

Frequency × data value column $(f \times x)$