Tentukan rata-rata dari data yang diberikan berikut.
a. 11, 12, 12, 12, 12, 13, 14
b. 108, 103, 98, 105, 85, 112, 119, 82, 94, 115, 126
c. 40, 50, 55, 60, 8, 37, 50
d. Pengunjung di klinik kesehatan gigi
Jawaban
A. (11 + 12 × 4 + 13 + 14) ÷ 7
11 + 48 + 27 ÷ 7
86 ÷ 7
= 12,28
B. 82, 85, 94, 98, 103, 105, 108, 112, 115, 119, 126.
1.147 ÷ 11
= 104,27
C. 8, 37, 40, 50, 50, 55, 60.
300 ÷ 7
= 42,85
D. 8, 12, 16, 17, 28, 31
112 ÷ 7
= 16
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