Pertanyaan

Varians(ragan) dari 4,5,4,6,2,9 adalah ...

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Klaim

N. Mustikowati

Master Teacher

Mahasiswa/Alumni Universitas Negeri Jakarta

Jawaban terverifikasi

Pembahasan

$R a t a minus r a t a colon X with minus on top equals fraction numerator jumlah straight space data over denominator banyak straight space data end fraction space V a r i a n space left parenthesis R a g a m right parenthesis colon sigma squared equals fraction numerator sum from i equals 1 to n of open parentheses x subscript i minus X with minus on top close parentheses squared over denominator n end fraction D i k e t a h u i colon space D a t a colon space 4 comma space 5 comma space 4 comma space 6 comma space 2 comma space 9 space U r u t k a n space d a t a space d a r i space y a n g space t e r k e c i l space d a h u l u comma space y a i t u colon space 2 comma space 4 comma space 4 comma space 5 comma space 6 comma space 9 space M a k a colon space R a t a minus r a t a colon X with minus on top equals fraction numerator left parenthesis 2 plus 4 plus 4 plus 5 plus 6 plus 9 right parenthesis over denominator 6 end fraction equals 30 over 6 equals 5 S e h i n g g a colon space V a r i a n s space left parenthesis R a g a m right parenthesis colon sigma squared equals fraction numerator open parentheses 2 minus 5 close parentheses squared plus 2 open parentheses 4 minus 5 close parentheses squared plus open parentheses 5 minus 5 close parentheses squared plus open parentheses 6 minus 5 close parentheses squared plus open parentheses 9 minus 5 close parentheses squared over denominator 6 end fraction equals fraction numerator 9 plus 2 plus 0 plus 1 plus 16 over denominator 6 end fraction equals 28 over 6 equals 14 over 3 J a d i comma space V a r i a n s space d a r i space d a t a space t e r s e b u t space a d a l a h space 14 divided by 3.$