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Sigma in Statistical Analysis: What You Need to Know
Key Points Sigma represents the population standard deviation for a data set Sigma is used to measure process capability in ...
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Money blog: Family butcher reveals what job is really like - and huge hit the budget is going to have
Last year, Italy's wine exports to the US totalled €1.9bn. Some people on benefits 'taking the mickey', work and pensions secretary says Work and Pensions Secretary Liz Kendall has said some ...