CAIE S1 2017 November — Question 1

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2017
SessionNovember
TopicMeasures of Location and Spread
TypeCalculate mean from coded sums
1 Andy counts the number of emails, \(x\), he receives each day and notes that, over a period of \(n\) days, \(\Sigma ( x - 10 ) = 27\) and the mean number of emails is 11.5 . Find the value of \(n\).
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