Daftar Isi
Simpangan baku dr data 5, 6, 7, 8, 9
x = (5 + 6 +7 + 8 + 9) / 5 = 35/7 = 5
Simpangan Baku
= √(5² – 7²) + (6² – 7²) + (7² – 7²) + (8² – 7²) + (9² – 7²) / √7
= √(4 + 1 + 0 + 1 + 4) /√7
= √10 / √7
= 1,2
Simpangan baku dr data 7, 5, 6, 8, 9
5,6,7,8,9
8-6 = 2
1/2(2) = 1
simpangan baku dr data 7 6 8 8 9 5 9 6 5 yakni
Jawaban:
7+6+8+8+9+5+9+6+5=63
63 : 9=7
jadi rata ratanya 7
Simpangan baku dr data 5, 5, 6, 6, 7, 7, 8, 8, 9, 9 adalah
xi = 5+5+6+6+7+7+8+8+9+9 = 70
xi² = 25+25+36+36+49+49+64+64+81+81 = 510
(xi)² = 70² = 4900
s² = (10).(510) – (4900)
_______________
10(10-1)
s² = 5100 – 4900
_____________
90
s²= 200
_____
90
s² = 2.22
s = √2.22
1.489
simpangan baku dr data 8 6 5 7 9 yaitu
hasil simpangan baku tersebut yaitu 2 