Page 21 - Microsoft Word - 00 ACCA F2 Prelims.docx
P. 21

Sources of data





                            Types of data




                             Primary data is obtained directly from first-hand sources by means of
                             surveys, observation or experimentation.  Primary data is any data
                             which is used solely for the purpose for which it was originally collected.

                             Secondary data is data that has been collected or researched recently.
                             The data collected is useful as it allows the researcher to see the other
                             opinions on their area of study


                             An important distinction is made here since information collected for
                             one purpose by a business and then, at a later date, used again for
                             another purpose would no longer be primary data.

                             Discrete data is non-continuous data. Discrete data can only take
                             certain values for example the number of students taking a course
                             (there wouldn’t be half a student). Discrete data is counted.

                             Continuous data is unbroken data that has no gaps. Continuous data
                             can take on any value (within a range) for example time or distance.
                             Continuous data is measured.











































                                                                                                       15
   16   17   18   19   20   21   22   23   24   25   26