Ten Practice Questions for Data Handling Tests
What fraction of the disk space has been used up?
Answer: D: 1/5. 20% is the same as 20 ÷ 100 = 2 ÷ 10 = 1/5.
Look at the graph. Which day of the month had the most unique visitors to the website?
Answer: The 10th. This is simply where the line is highest.
Which month had the fewest admissions as a result of road accidents?
Answer: D: November. This is where the road accidents line is lowest.
How many rescues took place in 2009 in the Liverchester area?
Answer: B: 156.
This graph shows the temperature of a patient taken every hour for 24 hours. What was the patient’s maximum temperature over the day?
Answer: C: 40ºC. The maximum is the highest point on the graph.
Mrs Miggins’ Pie Shop sells several different pies. The pie chart shows her sales for one day. The angle of the slice for mushroom pies is 60º. How many mushroom pies did she sell?
Answer: B: 30. There are 360 degrees in a circle, and 180 pies – so there are two degrees for each pie. If the angle is 60º, that corresponds to 30 pies.
The figure shows the nationalities of students on an exchange visit to London. Which country sent the most students?
C: Spain and Germany
Answer: B: Sweden. Sweden sent a total of 38 students, Germany and Spain only 35.
Dawn records the heights of her prize sunflowers in the tally chart shown. Which group is the modal group?
D: The data has no mode.
Answer: C: 100-120cm. The modal group is the one containing the biggest number of sunflowers.
When you’re working with a tally chart, it’s usually easier to work with numbers than with tally marks. Count up the tallies (each cluster is worth 5) and write them down next to the group so you can refer to them.
What is wrong with this graph?
Answer: The months aren’t evenly spaced! Many months are missing.
A party must win at least 10% of the votes in a town to avoid losing its deposit. In how many of the three towns did the Slightly Silly party lose its deposit?
Answer: Only one (Carrolton). It won 10% in Barbury and 20% in Alberton.