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Further1 types of data

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  • 1. Further MathsTypes of Data K McMullen 2012
  • 2. Types of Data Ordinal Categorical NominalData Discrete Numerical Continuous K McMullen 2012
  • 3. Types of DataCategorical Ordinal: Data with ordered qualities, eg. Football ladder Nominal: Data without order, eg. Species of fishNumerical Discrete: Data with quantities that are counted, eg. number of students in year 12 Continuous: Data where quantities are measured, eg. Height of students K McMullen 2012
  • 4. Types of DataUnivariate Data: Data with one variable (theinformation deals with only one quantity thatchanges) Example: comparing the height of students in the classBivariate: Data with two variables (theinformation deals with two quantities thatchange) Example: analysing the relationship between hours of sleep and test scoresRemember: Uni= One, Bi=Two K McMullen 2012
  • 5. Types of DataWhich graph do I use? Bar Chart: Categorical Data or discrete numerical data (one variable) Segmented bar chart: Categorical Data or discrete numerical data (one or two variables) Histogram: Medium to large sets of discrete and continuous numerical data (one variable) Stem Plot: Small to medium sets of numerical data (one or two variables) Dot plot: small sets of categorical or discrete numerical data (one variable) Box plot: discrete or continuous numerical data (one to two variables) Scatter plot: discrete or continuous numerical data (two variables)More information regarding the different graphs will beprovided in the following slideshow K McMullen 2012