Statistics

National Statistics Online

www.statistics.gov.uk

General statistical sites

A range of websites exist providing general statistical information.  These include:

Glossary of statistical terms
www.stats.gla.ac.uk/steps/glossary/

http://www.csm-oxford.org.uk/statistical-resources/statistical-glossary/ 

Sample size calculations
http://hedwig.mgh.harvard.edu/sample_size/size.html

Sample size table

http://research-advisors.com/tools/SampleSize.htm

Random Number Generator
www.random.org

Statistics for clinical audit

www.hqip.org.uk/assets/1-HQIP-An-Introduction-to-Statistics-for-Clinical-Audit.pdf

Royal College of Psychiatrists step-by-step guide:

www.rcpsych.ac.uk/pdf/clinauditChap2.pdf