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Measures of location — mean, median, mode and quartiles
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The values of a variable
x
x
x
are coded using
y
=
x
−
100
5
y = \dfrac{x - 100}{5}
y
=
5
x
−
100
. The mean of the coded values is
4
4
4
. Identify the mean of the original values.
Circle your answer.
A
104
104
104
B
120
120
120
C
20
20
20
D
24
24
24
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Level 1
1 mark
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