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Kegiatan rutin SD N 4 Simpang Raya setelah berolah raga semua murid yang ikut olah raga diukur tekanan darahnya. Hasil pengukuran diketahui standar deviasi populasi

Kegiatan rutin SD N 4 Simpang Raya setelah berolah raga semua murid yang ikut olah raga diukur tekanan darahnya. Hasil pengukuran diketahui standar deviasi populasi 2 milimeter merkuri atau mmHg. Jika diukur 10 siswa, berapa standar deviasi sampel kurang dari 0,975 mmHg. (Gunakan rumus khii kuadrat)

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