Simpangan rata-rata dan simpangan baku 2, 4, 6, 9, 9

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Simpangan rata-rata dan simpangan baku 2, 4, 6, 9, 9​

Penjelasan dengan langkah-langkah:

rata rata data diatas =30/5 = 6

simpangan rata rata

=√(2-6)² + (4-6)² +(6-6)²+(9-6)² +(9-6)²/5

=√16 +4+0+9 + 9/5

=√38/5 . √5/√5

=√190/5

=√38

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