3. Simpangan baku dari data 9, 7, 8, 4 adalahA. 3,5B. 2c.&D. √5,5E. V6
Jawaban:
x = (9+7+8+4)/4 = 28/4 = 7
Simpangan baku
= √((9-7)²+(7-7)²+(8-7)²+(4-7)² / 4)
= √((4+0+1+9) / 4)
= √(14/4)
= √(7/2)
= √14/2
= 1,8
3. Simpangan baku dari data 9, 7, 8, 4 adalahA. 3,5B. 2c.&D. √5,5E. V6
Jawaban:
x = (9+7+8+4)/4 = 28/4 = 7
Simpangan baku
= √((9-7)²+(7-7)²+(8-7)²+(4-7)² / 4)
= √((4+0+1+9) / 4)
= √(14/4)
= √(7/2)
= √14/2
= 1,8