Students may have to calculate the variance or standard deviation (either sample or population formula would be creditworthy).
The mathematical Requirements are listed in full in section 5.c of the AS or A Level which is available on Teach Cambridge.
Within both AS and A Level Psychology, 10% of the marks available within written examinations will be for assessment of mathematics (in the context of psychology) at a Level 2 standard, or higher.
We have resources to help support you when delivering this topic. We recommend our Teacher Guide: Descriptive Statistics and Student activity: Descriptive Statistics Workbook. These can be found in Teach Cambridge, under Teaching, then Activities.
If you do not have access to Teach Cambridge, please contact your Exams Officer. You can forward them this link to help get you started.