Practise organising and interpreting data, calculating averages and spread, and constructing statistical diagrams from raw, grouped and cumulative information.
Miguel works in an office.
Miguel records the length of time of each telephone call he receives, correct to the nearest minute.
The recorded times are shown in the table.
Complete the frequency table.
You may use the tally column to help you.
Draw a bar chart to show this information.
Complete the scale on the frequency axis.
Use the bar chart to write down the modal group.
A shop sells 58 televisions in one week.
The bar chart shows the number of televisions that the shop sells on five of the days.
Write down the number of televisions that the shop sells on Monday.
Find the fraction of the televisions that the shop sells on Sunday.
Write down the mode.
The scatter diagram shows the prices of different sized televisions.
Write down the type of correlation shown in the scatter diagram.