Currently viewing the tag: "Interpret and report data"
This data from the World Health Organisation portrays the growth in the number of confirmed cases of the coronavirus disease. In some countries the pattern appears to be exponential growth. Data is given for the most affected countries and for the two countries in Africa with more than 10 cases.
In one week, new data […]
Mathematical modelling and making real life connections is the focus of this guide. The use of tree diagrams in probability is developed starting with collecting data to model the numbers of boys and girls in families and the orders in which they occur. The connections between the underlying mathematics in these situatons, […]
Whether or not you have plenty of water where you live it is interesting to see how we use water in our homes.
Cape Town in the 2018 dry season has a serious water shortage and water is rationed to 50 litres per person per day, as shown in this poster.
In 2018 Cape Town was in danger of running out of water. Half a billion people in the world face severe water scarcity all year round. Half of the world’s largest cities experience water scarcity
In 2018 the City of Cape Town rationed everyone to 87 litres a day and published this […]
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 table gives the 2013 population statistics for South Africa.
Complete the table and draw a histogram to represent this data.
Calculate the mean of this distribution. What can you say about the other measures of central tendency (the median and the mode)?
According to news reports in 2013 Johanna […]
In Durban the average salary is R160,000 and in Cape Town it is R180,000. Mdu moved from Cape Town to Durban.
Mdu has made both cities richer because the average salary has gone up in both due to his move. Can you explain how that could happen?
Describe what is needed for one person moving […]
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