Question

Mean dari data p - 6, 12, p, 24, p + 7 , p + 5 adalah 23. Tentukan modus dan median data.

Answer 1

23 = (p-6+12+p+24+p+7+p+5) / 6
23 × 6 = (p-6+12+p+24+p+7+p+5)
138 = 4p + 42
138 - 42 = 4p
96 = 4p
96/4 = p
24 = p
Dapat lah data :
18 12 24 24 31 29
Modus : 24
Median : 24

Answer 2

Mean : (p-6)+(12)+(p)+(24)+(p+7)+(p+5)/6
23= 4p+42/6
138 = 4p+42 (dikali silang)
-4p= 42-138
-4p =-96
p= 24

p-6= 24-6=18
p=24
p+7= 24+7=31
p+5 = 24+5=29

Data diurutkan : 12,18,24,24,29,31
Median=24+24:2=24
Modus=24