Bantu jawab dong poin besar

26.
mean =( 6 + 7+8+5+6+6+7+9)/8
= 54/8
= 6,75

c. 6,75

27.
Mean = (5+4+6+6+x+7+7+8)/8
6 = (43+x)/8
6x8 = 43 + x
48 = 42+x
x = 48-43
x = 5