In the unit Samples and Populations students collect, organize and analyze data. They learn to:
- Use the process of statistical investigation to explore problems;
- Choose appropriate samples from populations and use information from samples to draw conclusions about populations
- Explore the influence of sample size and sample selection processes in trying to obtain a sample which is likely to be predictive about the population
- Apply concepts from probability to select random samples from populations
- Compare sample distributions using measures of center (mean, median), measures of spread (range, least to greatest data values, percentiles), and data displays that group data (histograms, box-and-whisker plots)
- Explore relationships between paired values of numerical attributes
