use relative frequencies obtained from data to obtain point estimates of probabilities associated with a discrete random variable
recognise uniform discrete random variables and use them to model random phenomena with equally likely outcomes
recognise the mean or expected value of a discrete random variable as a measurement of centre, and evaluate it in simple cases
recognise the variance and standard deviation of a discrete random variable as a measures of spread, and evaluate them in simple cases
use discrete random variables and associated probabilities to solve practical problems
