KS3 Maths Quiz
Level 7-8 Data Handling - Making Connections
What relationship is likely to be shown if ice cream sales are plotted against daily temperatures?

Level 7-8 Data Handling - Making Connections

Data handling is an important topic in KS3 Maths. In data handling, making connections can involve finding patterns. Data is usually collected with the purpose of showing connections which might answer a question, test a theory or verify a prediction. These connections can be illustrated by making a variety of diagrams.

Imagine that you gathered some information on the amount of traffic at certain times of the day over the course of a week. Once you have all of your data you will need to organise it, most likely in the form of a graph. Once you've drawn your graph you will start to see patterns - busiest times of the day, quietest times, busiest days, quietest days etc. You may then be able to come up with explanations for these patterns - morning rush hour, shopping day, school drop-off time etc.

Try the following quiz to get some practise making connections. Read each question carefully and be sure you understand them before you choose your answers. It may seem easy, but overconfidence can lead to silly mistakes. Good luck!

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  1. Tony wants to test his theory that the weather affects tourism. This sort of theory is called a .......
    Scientific theories begin life as hypotheses
  2. The correlation of sea water temperatures plotted on a scattergraph against the number of bathers is .......
    The warmer the water, the more people will go swimming
  3. A scattergraph of rainfall against numbers of people on the beach shows negative correlation indicating that .......
    Not many people visit the beach when it's raining
  4. What relationship is likely to be shown if ice cream sales are plotted against daily temperatures?
    Only one of the four possible answers mentions temperature
  5. Time spent in a games arcade is recorded in categories 'up to 10 minutes', 'up to 20 minutes' etc. What sort of diagram is used to illustrate this data?
    Times of 'up to 10 mins' are included in 'up to 20 mins' so the figures are cumulative
  6. The steepest part of the cumulative frequency graph represents .......
    Cumulative frequency (CF) is always recorded on the vertical axis
  7. Tony recorded the games arcade times of 400 people. His estimate for the average time from the CF graph is .......
    This is an estimate for the median time
  8. The times corresponding to 100 and 300 on the CF axis are called the lower and upper .......
    The difference between these values is called the Inter Quartile Range (IQR)
  9. What proportion of the data is represented by the IQR?
    The median is at the middle quartile
  10. Tony is at a seaside holiday resort. If he plots slot machine takings on a scattergraph against rainfall he is likely to find that .......
    Some people play the arcade games even in good weather but more will play to get out of the rain

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