What will happen to the result? Edit

It will produce vast amount of data. In both numerate and descriptive form. The data will be said as "raw" or unprocessed data. The data has not been analyzed or presented in ways that will assist business decisions making. Once, the data has been processed and been through the stages, the data will be "information" that can be used.

Presentation of data Edit

  1. Bar Charts
    • Width equal, height varying to represent relative values. 3 types of bar charts are simple bar chart, percentage bar chart, component bar chart.
  1. Histograms
    • Area of each bar represents the relative values. When interval width increases, the height of the bar must be reduced. There is also no gap between bar.
  1. Line Graphs
    • Showing changes in a variable over time – time-series graphs.
  2. Actions-office-chart-line-icon

Pie Charts

    • To display data that need to be presented in such way that the proportions of the total are clearly shown.
Screen Shot 2015-02-17 at 8.36.55 PM

Appropriateness of methods of presentation: Edit

Method of presentation Most useful for
  • When a wide range of data results need to be recorded
  • When results need to be analysed by statistical means and it is essential to have the numbers themselves (it will be more accurate)
  • When there is a lot of text to include with the results, such as detailed headings for each column
Line graphs
  • When time is one of the variables
  • Trend and regular variations needs to be identified
  • When two or more sets of time-series data need to be compared
Bar charts
  • When absolute size or magnitude of results needs to be presented and compared
  • When component and percentage component charts can be used to show how the total figure is comprised of different sections.
Pie charts
  • Visually useful to show the relative importance of sections or segments out of a total result (it will be more easier to visually compared)
  • It will be less effective when: comparison between totals, or when precise comparisons of segments over time are required
  • It can be used to visually present frequency data when the ranges of the data has be broken down into class. It can be used for simple statistical analysis such as identifying the modal class.
  • It will be useful when the user wants to attract the reader towards looking at the data

Analysing each results: Edit

AVERAGE:Anaverageis the sum of a list of numbers divided by the number of numbers in the list. However, the word average may also refer to the median, mode, or other central or typical value. Edit

3 types of average calculation: Edit

  1. Mean
    • Calculated by totalling all the results and dividing by the number of results
  2. Mode
    • The value that occurs most in a set of a data
  3. Median
    • The value of the middle item when data have been ordered or ranked. it divides the data into two equal parts

Frequency Data Edit

Grouped Frequency Data – used when what is being measure is not a whole number, but a range of possible responses.

Screen Shot 2015-02-17 at 8.51.44 PM

The spread/dispersion of data Edit

  1. The range
    • Range is the difference between the highest and lowest value
  2. The inter-quartile range
    • Inter-quartile range is the range of the middle 50% of the data

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.