Here are the weights, in kilograms, of five babies.
2.69
3.44
4.52
3.47
3.20
Find the standard deviation of these weights.
You must show your working.
Give your answer correct to 3 significant figures.
Practise AQA GCSE Statistics Standard Deviation with exam-style questions for Foundation and Higher tier. 10 questions, matched to the AQA GCSE Statistics (8382) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.