Sample Data
X1 = 6
X2 = 5
X3 = 2
X4 = 7
X5 = 3
X6 = 4
X7 = 6
X8 = 2
X9 = 1
X10 = 8
The Mean (average): the value in which the sum of
all of the scores devided by the sample size.
=
=
The Median: The score at which half of the
observations are greater and half are smaller.
The Mode: the most frequently occurring value in
a variable.
1, 2, 2, 3, 4, 5, 6, 6, 7, 8
= 4.5
1, 2, 2, 3, 4, 5, 6, 6, 7, 8
=
= 4.4
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