The variance of a set of scores on an aggression scale in a social psychology study is 32.49. What is the standard deviation?
32.032.032.0
5.75.75.7
16.2516.2516.25
1055.61055.61055.6
513 exam-style questions on OCR A Level Psychology Data recording, analysis and presentation. Each one has a worked solution and a mark scheme showing where the marks go.