Simpangan baku dari data 2,4,4,5,5,6,6,8

Simpangan baku dari data 2,4,4,5,5,6,6,8

Penjelasan dengan langkah-langkah:

$X = frac{2 + 4 + 4 + 5 + 5 + 6 + 6 + 8}{8} = frac{40}{8} = 5$

SB = simpangan baku

$SB = sqrt{ frac{(2 - 5) {}^{2} + (4 - 5) {}^{2} + (4 - 5) {}^{2} + (5 - 5) {}^{2} + (5 - 5) {}^{2} + (6 - 5) {}^{2} + (6 - 5) {}^{2} + (8 - 5) {}^{2} }{8} } \ SB = sqrt{ frac{( - 3) {}^{2} + ( - 1) {}^{2} + ( - 1) {}^{2} + (0) {}^{2} + (0) {}^{2} + (1) {}^{2} + (1) {}^{2} + (3) {}^{2} }{8} } \ SB = sqrt{ frac{9 + 1 + 1 + 0 + 0 + 1 + 1 + 9}{8} } \ SB = sqrt{ frac{22}{8} }$

Semoga Membantuuuu ☺