JAMB - Mathematics (2021 - No. 10) | ExamPlay

JAMB - Mathematics (2021 - No. 10)

Find the mean deviation of 1, 2, 3 and 4

1.0

1.5

2.0

2.5

Explanation

_
Mean deviation = Σ|x - x|
n
_
x = 2.5
= |1 - 2.5| + |2 - 2.5| + |3 - 2.5| + |4 - 2.5|
4
= 4/4 = 1

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