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Data Collection in Action

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Data Collection in Action

A community centre wants to plan equipment for its lunchtime activity area. Use the data below to investigate what children prefer. Then decide whether the data collection was fair and reliable.

The data collection

Mere asked 24 children who were waiting beside the football field: “Which activity would you most like the centre to provide?” She asked each child to choose one option and made a preliminary tally of one choice per child. For the two forms with two ticks, she counted only the first tick when making this tally. She has not yet checked the forms for errors. The preliminary results are below.

Activity

Number of children

Football

9

Skipping

6

Board games

5

Basketball

4

1.How many children answered the question altogether? Show how you know using the counts in the table.
2.Which activity was most popular, and how many more children chose it than basketball?
3.What fraction of the children chose board games? Give your answer in simplest form.
4.Mere says, “Half the children chose football.” Is she correct? Use the data to explain.
5.Choose the best description of Mere’s data collection method.
  • A survey, because she asked children for their preference
  • An experiment, because she changed one activity
  • An observation, because she watched children play
  • A measurement, because she used a ruler
6.Mere only asked children waiting beside the football field. Explain one way this could make the results biased, and suggest one improvement to make the sample fairer.
7.Mere recorded preliminary results for 24 children, but when she checked the forms she noticed two children had each ticked two activities. What should she do before using the results?
8.The centre can buy equipment for just one activity. Based on this survey, what would you recommend? Give one reason and one limitation of your recommendation.

2 printable pages

  • Data Collection in Action, page 1 of 2: The data collection

    Page 1

  • Data Collection in Action, page 2 of 2: 4. Mere says, “Half the children chose football.” Is she correct? Use the data to explain.

    Page 2

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