It is two questions that need to be answered in 550 words maximum. It is actually statistics and not mathematics but the option was not there.
You may assume the methods you have used (e.g. t-test, linear regression, etc) are understood by the reader and do not need definitions, but you do need to explain the intuition of these methods in getting the answers.
Graphs or tables etc will be needed on 1 or 2 of the questions.Tags: discuss, methods, quantitive, research