Mathematics (AS & A Level) · Oct / Nov 2018 · Paper 62 · Question 5
9709
As printed in the paper
The question as text
The Quivers Archery club has 12 Junior members and 20 Senior members. For the Junior members, the mean age is 15.5 years and the standard deviation of the ages is 1.2 years. The ages of the Senior members are summarised by Σy = 910 and Σy2 = 42 850, where y is the age of a Senior member in years.
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5(i)[2]
5(ii)[4]
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