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Central Tendency
medium
0:00.0
If the mean of
1
,
2
,
3
,
x
1, 2, 3, x
1
,
2
,
3
,
x
is
2.5
2.5
2.5
, find
x
x
x
.
A
5
5
5
B
2
2
2
C
3
3
3
D
4
4
4
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