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