Question

find mean of data = x: 7 9 12 16 19 20,f: 5 9 6 10 8 12​

Answer 1

Answer:

Unit 5 Section 2 : Mean, Median, Mode and Range

The mean, median and mode are types of average.

The range gives a measure of the spread of a set of data.

This section revises how to calculate these measures for a simple set of data.

It then goes on to look at how the measures can be calculated for a table of data.

Calculating the Mean, Median, Mode and Range for simple data

The table below shows how to calculate the mean, median, mode and range for two sets of data.

Set A contains the numbers 2, 2, 3, 5, 5, 7, 8 and Set B contains the numbers 2, 3, 3,