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Dari setiap data berikut, tentukan simpangan rata-rata, ragam dan simpangan baku. 

begin mathsize 14px style 7 comma space 6 comma space 7 comma space 8 comma space 5 comma space 10 comma space 9 comma space 11 comma space 9 end style   
   space 

  1. ... undefined 

  2. ... undefined 

M. Alfi

Master Teacher

Mahasiswa/Alumni Universitas Negeri Semarang

Jawaban terverifikasi

Pembahasan

begin mathsize 14px style x with minus on top equals 1 over 9 cross times open parentheses 7 plus 6 plus 7 plus 8 plus 5 plus 10 plus 9 plus 11 plus 9 close parentheses equals 8 end style

begin mathsize 14px style S R equals fraction numerator open vertical bar 7 minus 8 close vertical bar plus open vertical bar 6 minus 8 close vertical bar plus open vertical bar 7 minus 8 close vertical bar plus open vertical bar 8 minus 8 close vertical bar plus open vertical bar 5 minus 8 close vertical bar plus open vertical bar 10 minus 8 close vertical bar plus open vertical bar 9 minus 8 close vertical bar plus open vertical bar 11 minus 8 close vertical bar plus open vertical bar 9 minus 8 close vertical bar over denominator 8 end fraction S R equals 14 over 8 equals 1 , 75 end style 

begin mathsize 14px style s squared equals fraction numerator open parentheses 7 minus 8 close parentheses squared plus open parentheses 6 minus 8 close parentheses squared plus open parentheses 7 minus 8 close parentheses squared plus open parentheses 8 minus 8 close parentheses squared plus open parentheses 5 minus 8 close parentheses squared plus open parentheses 10 minus 8 close parentheses squared plus open parentheses 9 minus 8 close parentheses squared plus open parentheses 11 minus 8 close parentheses squared plus open parentheses 9 minus 8 close parentheses squared over denominator 6 end fraction s squared equals 30 over 8 equals 3 , 75 end style 

begin mathsize 14px style s equals square root of 3 , 75 end root equals 1 , 936 end style 

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Dari setiap data berikut, tentukan simpangan rata-rata, ragam dan simpangan baku.  4,5,3,6,7,5

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