The graph and table show the Gross Domestic Products (GDP) of the world’s top ten economies in 2016 and the forecast for 2030.
Draw a double bar chart to compare the GDPs for these eleven countries.
Which countries were in the top ten in one of these […]
The total world population in 2017 is 7.5 billion (7,500,000,000). What percentage of the world population is without safe drinking water?
The world […]
Explain how the percentage 69.03% of saltwater that makes up the Earth’s surface is calculated from these figures.
How would you use this percentage to find the angle for saltwater for drawing a pie chart?
A pie chart and […]
a mean of 4
a median of 3
and a mode of 3?
One solution is 3, 3, 3 ,5 and 6 and there are several other solutions.
When you have found some solutions make […]
The graph shows the distance along a race track for two racing cars as they approach a bend in a race. Copy the table below, take readings from the graph and fill in the table for the first 10 seconds.
How far does each car go in the 3rd second? How far […]
The ages of children arriving at a zoo in 1 hour are noted by the ticket salesman. There are 12 children between 0 and 3 years old, 14 children between 4 and 10 years old and 48 between 11 and 18 years old.
He draws a bar graph or frequency diagram to represent this […]
The data shows how many goals the teams scored in their matches.
There are six sets of data, three showing the results for Alpha United and three for Beta Rovers.
Match the data to the teams and explain your answers.
See the […]
Complete the table and draw a histogram to represent this data. Comment on the distribution.
Remember that for a histogram the area in each column represents the frequency for that class.
You can see that almost half the population is under 25 years old. […]
The histogram shows the number of children in each age group on a school bus. There are no children under 5 years and no children over 17 years. There are 6 children aged between 5 and 10 years . Explain why the class boundaries are 5, 11, 16 and 18. Complete the following table. […]
What fraction of the ice creams sold were strawberry? If she sold 60 strawberry ice creams how many ice creams were sold altogether.
The number of vanilla ice creams and the number of chocolate ice creams sold were the same.