Statistics and data
Classify data types, calculate measures of centre and spread, display data in graphs, and interpret statistical displays.
Statistics and Probability · MA5-DAT-C-01
Sub-topics
Types of data
Classify variables as categorical or numerical, and numerical data as discrete or continuous, and select appropriate displays and summary measures.
Measures of centre
Calculate and interpret the mean, median and mode of datasets, including finding the mean from a frequency table and choosing the most appropriate measure for a given context.
Measures of spread
Calculate the range and interquartile range of datasets, and identify the effect of outliers on measures of spread.
Displaying data
Read and interpret stem-and-leaf plots, dot plots and histograms, and select the most appropriate display for different types of data.
Interpreting data
Describe the shape of distributions, identify and explain outliers, and compare two datasets using measures of centre and spread.