Data distributions
0 of 24 topics done
Data types and categorical displays
1Classify a variable as nominal, ordinal, discrete or continuousOpen, set of 8START2Distinguish interval and ratio measurement scalesOpen, set of 8START3Build a frequency and percentage frequency tableOpen, set of 8START4Build a bar chart from a frequency tableOpen, set of 8START5Read values from a frequency table or bar chartOpen, set of 8START
Reading categorical displays
6Read values from a frequency table or bar chartOpen, set of 8START7Report on the distribution of a categorical variableOpen, set of 8START8Compare categorical distributions across two groupsOpen, set of 8START
Frequency tables and histograms
9Group numerical data into class intervalsOpen, set of 8START10Construct a histogram from a frequency tableOpen, set of 8START11Read values from a histogramOpen, set of 8START
Distribution shape and plots
12Describe the shape of a distributionOpen, set of 8START13Construct a dot plot from raw dataOpen, set of 8START14Construct an ordered stem plot from raw dataOpen, set of 8START15Choose an appropriate display for a variableOpen, set of 8START
Measures of centre
16Find the mean and the median, and choose between themOpen, set of 8START17Find measures of centre from a frequency displayOpen, set of 8START18Work backwards from a mean or medianOpen, set of 8START
Measures of spread
19Find the range, the quartiles and the IQROpen, set of 8START20Calculate the standard deviation from the formulaOpen, set of 8START
Standard deviation intervals
Box plots
22Produce a five-number summary and construct a boxplotOpen, set of 8START23Find the fences and identify outliersOpen, set of 8START24Read values and percentages from a boxplotOpen, set of 8START
Comparing distributions