Friday 21 November 2014

Nilai rata-rata dan standard deviasi

Budi mengerjakan 5 soal dalam 2 jam.
Soal #1 = 10 menit
Soal #2 = 20 menit
Soal #3 = 30 menit
Soal #4 = 40 menit
Soal #5 = 20 menit

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