Gemiddelde

Bereken het gemiddelde

\(\text{2, 1, 8, 9, 6, 10, 4, 9, 4, 1, 7}\)

\(\text{2, 1, 8, 9, 6, 10, 4, 9, 4, 1, 7}\\= \frac{2 + 1 + 8 + 9 + 6 + 10 + 4 + 9 + 4 + 1 + 7}{11}\\=\frac{61}{11}\approx 5,5\)