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.
Ten students eat cereal with milk for breakfast.
The amounts are shown in the table.
Complete the scatter diagram.
The first six points have been plotted for you.
For these students, describe the relationship between the amount of cereal and the amount of milk.
On the grid, draw a line of best fit.
Another student has 280 ml of milk with her cereal.
Use your line of best fit to estimate an amount of cereal this student has.
___ g
20 students from College A each run 5 km.
The times, correct to the nearest minute, are recorded.
Complete the stem-and-leaf diagram.
Key: 3 | 4 represents 34 minutes.
Find the range of the times.
___ min
Find the median of the times.
___ min
Complete the bar chart for the times of the students.
20 students from College B each run 5 km .
Their times, correct to the nearest minute, are recorded and the results are shown in the table.
Complete the pie chart.
Write down two comments comparing the times of students from College A with the times of students from College B.
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2