Mathematics, 29.10.2020 17:40 21marmong
Each of the 25 students on a computer course recorded the number of minutes x,
to the nearest minute, spent surfing the internet during a given day. The results
are summarised below.
Σx = 1075, Σx^2 = 44 625.
(a) Find µ and σ for these data.
(3marks)
Answers: 3
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Each of the 25 students on a computer course recorded the number of minutes x,
to the nearest minut...
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