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In a sequence the sum of two consecutive numbers 21 and 28 is 49 what special name is given to this sum? If my p value is 0.010 then should my arrow be < or > ? Say someone's chances of improvement are multiplied by a factor of 1.4, how can I convert this factor to a percentage? The difference between paracetamol casuples and paracetamol? Please help. Integration?