Data Handling Cycle _ppt_ by malj

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									Where/how would you find out the
answers to these questions?
Write the question & answer in your book

•What are pupils favourite lunches?

•What is the most popular colour trainer?

•In which supermarket department do people spend
the most money?

•Are there more car journeys or Friday or Saturday?

•Which is more important; quality or design?

•Does age affect happiness?
Handling Data


Use the handling data cycle
                  Specify the
                   problem
                   and plan

  Interpret and                  Collect data
   discuss data                 from different
                                   sources

                  Process and
                  present the
                     data
   Handling Data


   Specify the problem
                      Specify the
                       problem
A Hypothesis is
   an opinion,
                       and plan
                                       The population
 idea or theory                        is all the things
you have group                           in that group


                  Make a HYPOTHYSIS
                  about a POPULATION
 Handling Data


 Specify the problem
                                    “Faster
                 Specify the         roller-
                  problem          coasters
 “Winning                         can charge
teams have        and plan           more”
   higher
attendance
  figures”

             Make a HYPOTHYSIS
             about a POPULATION
Handling Data


Planning
            Specify the problem and plan



     Make a HYPOTHYSIS about a POPULATION



                Collect data about
                 the population

    PRIMARY data:                 SECONDARY data:
Data you collect yourself         Data from a source
 Handling Data
 List examples of ways of collecting…
         Primary Data                          Secondary Data

(how could you collect data yourself)   (list some data sources – the internet
                                           does not count as a source; it is a
                                             method of accessing a source)

								
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