Statistical Techniques

Demonstrate an understanding of number, area, and scale.
Demonstrate an understanding of the quantitative relationships between units.
Understand and correctly use proportion, ratio, magnitude, and frequency.
Understand and correctly use appropriate measures of central tendency, spread, and cumulative frequency (median, mean, range, quartiles, inter-quartile range, mode, modal class).
Calculate and understand percentages (increase and decrease) and percentiles.
Design fieldwork data collection sheets and collect data with an understanding of accuracy, sample size, procedures, control groups, and reliability.
Interpret tables of data.
Describe relationships in bivariate data.
Sketch trend lines through scatter plots and draw estimated lines of best fit.
Make predictions by interpolating and extrapolating trends from data.
Identify weaknesses in statistical presentations of data.
Draw and justify conclusions from numerical and statistical data.

What you need to know