How much do Yr 11&12's earn?

Students were asked:

Last week, how much money did you earn before tax (to the nearest dollar)?

The mean (m) amount of money earned 'last week' by the Year 11 and 12 respondents was $56.99 while the standard deviation (s) was $106.58

What does this tell you about the form of the population distribution?

So what about the Year 8's or 10's? What about girls versus boys? Use the sampler to sample from the population and estimate the parameters.