4400 Higher November 2004 Paper 3 Q8

EdexcelHigherOld spec8 marksAverages (including IQR)

8 The table shows information about the ages of 24 students.

Age (years)Number of students
169
173
188
194
(a)
(i) Write down the mode of these ages.
(ii) Find the median of these ages.
(iii) Calculate the mean of these ages. (6)

Another student, aged 18, joins the group.

(b)
(i) Without calculating the new mean, state whether the mean will increase or decrease or stay the same.
(ii) Give a reason for your answer to (i). (2)
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