Matematika

Pertanyaan

simpangan baku data 2,3,3,4,4,5,5,6 adalah.......

1 Jawaban

  • → Rata Rata :
    = 2 + 3 + 3 + 4 + 5 + 5 + 6 + 4 / 8
    = 32 / 8
    = 4

    → Ragam :
    = (2 - 4)² + (3 - 4)² + (3 - 4)² + (4 - 4)² + (5 - 4)² + (5 - 4)² + (6 - 4)² + (4 - 4)² / 8

    = (-2)² + (-1)² + (-1)² + 0² + 1² + 1² + 2² + 0 / 8

    = 4 + 1 + 1 + 1 + 1 + 2 / 8
    = 10 / 8
    = 5 / 4

    → Simpangan Baku :
    = √ragam
    = √5/4
    = 1/2√5
     Semoga membantu :) :) 


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