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Handling data

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Handling data Using surveys What does a good survey do? Gathers information. Keeps information in categories. Makes information easy to use at a later date. – PowerPoint PPT presentation

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Title: Handling data


1
Handling data
  • Using surveys

2
What does a good survey do?
  • Gathers information.
  • Keeps information in categories.
  • Makes information easy to use at a later date.

3
Which is a better question?
  • I want to know what washing up liquid people use.
  • Should I ask
  • Do you use fairy washing up liquid?
  • Which brand washing up liquid do you use?

4
Good or bad question?
  • I want to know if people have seen the film
    Casino Royale.
  • Do you like James Bond films?
  • Did you see the film Casino Royale?

5
Good or bad question?
  • I want to know what the weather was like
    yesterday.
  • What was the weather like?
  • good ok rubbish
  • What was the weather like?
  • sunny raining windy dry

6
Do you have a better suggestion?
  • I want to know how many hours people play
    computer games in a week.
  • Question How many hours do you play computer
    games?

1
2
3
4
7
Do you have a better suggestion?
  • I want to know how people travel to work.
  • Question Do you travel to work by car?

8
Design your own questions.
  • I want to know about peoples holiday choices.
  • Things to include
  • Age of person.
  • Destination.
  • People who went.
  • How long they went for.
  • When they went.
  • Type of accommodation.

9
Using surveys
  • When using a survey it is important to follow a
    few rules to make your results as useful as
    possible.
  • Use random sampling.
  • Location of survey.
  • Age of people.

10
Using a survey
  • You are investigating which computer games
    children like best.
  • Where would you do your survey?
  • Would you ask every fifth person?
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