tentukan mean, modus, median, kuartil dan simpangan baku data berikut : 2,3,2,5,6,7,8,5,4,6,7,7

2,2,3,4,5,5,6,6,7,7,7,8
Mean=2+2+3+4+5+5+6+6+7+7+7+8
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12
=62/12
=5,16...
Modus=7
Median=(5+6)/2
=11/2
=5,5
Kuartil 1(bawah)=(3+4)/2
=7/2
=3,5
Kuartil 2=median
Kuartil 3(atas)=(7+7)/2
=14/2
=7