Graphs & Data Presentation

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6 Terms

1
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features of bar charts

  1. Used for discrete data

  2. Columns do not touch

  3. Useful for comparing groups of data

  4. Used for categories

  5. The mean/frequency is on the Y axis

  6. The category is on the X axis


2
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features of histogram?

  1. used for continuous data

  2. columns touch

  3. the area of the columns show frequency

  4. the frequency density is on the Y axis

  5. the continuous scale is on the X axis

  6. Requires class boundaries, class width and frequency density


3
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features of pie charts?

  1. used for discrete data

  2. shows relative contribution to overall total

  3. used for 6 categories or fewer

  4. useful when data is showing a percentage

  5. requires data to be represented as an angle


4
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features of line graphs?

  1. used for continuous data

  2. useful for comparing 2 or more conditions

  3. good for looking at changes over time

  4. can be used as an alternative for a histogram

  5. continuous scale is on the X axis


5
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features of scatter diagaram?

  1. used for continuous data

  2. used for measuring the relationship between the two variables

  3. data from one variable is presented on the x axis

  4. data from the other is presented on the y axis

  5. shows a positive, negative or no correlation


6
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