11. The number of pets 40 students own is recorded.
10
6
6
х
y
Number of
2
4
8
pets
Number of
2
14
students
(a) (i) Show that x + y = 18.
(ii) If the mean of the distribution is 6.4,
show that x + 3y = 30.
(iii) Hence, find the value of x and of y.
(b) Using your answers in (a)(iii), find
(i) the median,
(ii) the mode,
of the distribution.
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sorry l don't know the answer
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