Nilai mean untuk data; 5,6,7,5,4,6,7,8,6,6 Adalah..

mean :
x = ( 1 × 4 ) + ( 2 × 5 ) + ( 4 × 6 ) + ( 2 × 7 ) + ( 1 × 8 ) / ( 1 + 2 + 4 + 2 + 1 )
x = ( 4 + 10 + 24 + 14 + 8 ) / 10
x = 60 / 10
x = 6