February 2019 1 46 Report
1.Nilai rata2 kelas XI-A =8,5
Nilai rata2 kelas XI-B =6,5
Perbandingan jumlah siswa kelas XI-A : XI-B = 5 : 4
Tentukan rata2 kelas XI-A dan XI-B (rata2 gabungannya)
2. Diketahui suatu data dengn rata2 16 dan jangkaun 6,jika setiap data dikalikan p kemudian dikurangi q diperoleh data baru dengan rata2 20 dan jangkauan 9.hitung nili 2p + q !
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