Gemiddelde

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Bereken het gemiddelde

1. \(\text{2, 9, 8, 6, 5, 4, 6, 4}\)
2. \(\text{6, 8, 7, 9, 5, 4, 6, 7}\)
3. \(\text{4, 3, 6, 7, 10, 6, 9, 4, 3, 9}\)
4. \(\text{8, 1, 5, 4, 5, 5, 2, 9, 5, 6, 1, 1}\)
5. \(\text{8, 6, 10, 8, 5}\)
6. \(\text{8, 3, 5, 3, 7}\)
7. \(\text{2, 4, 7, 7, 4, 7, 5, 10, 5, 1, 4}\)
8. \(\text{10, 4, 6, 6, 9, 6, 9, 2, 1}\)
9. \(\text{10, 1, 5, 1, 4, 3, 3}\)
10. \(\text{8, 4, 6, 9, 1, 8, 10, 8}\)
11. \(\text{4, 2, 9, 5, 2, 5, 3, 10, 5}\)
12. \(\text{7, 9, 9, 2, 9, 6, 8, 8, 7, 9, 10, 10}\)

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{2, 9, 8, 6, 5, 4, 6, 4}\\= \frac{2 + 9 + 8 + 6 + 5 + 4 + 6 + 4}{8}\\=\frac{44}{8}=5,5\)
2. \(\text{6, 8, 7, 9, 5, 4, 6, 7}\\= \frac{6 + 8 + 7 + 9 + 5 + 4 + 6 + 7}{8}\\=\frac{52}{8}=6,5\)
3. \(\text{4, 3, 6, 7, 10, 6, 9, 4, 3, 9}\\= \frac{4 + 3 + 6 + 7 + 10 + 6 + 9 + 4 + 3 + 9}{10}\\=\frac{61}{10}=6,1\)
4. \(\text{8, 1, 5, 4, 5, 5, 2, 9, 5, 6, 1, 1}\\= \frac{8 + 1 + 5 + 4 + 5 + 5 + 2 + 9 + 5 + 6 + 1 + 1}{12}\\=\frac{52}{12}\approx 4,3\)
5. \(\text{8, 6, 10, 8, 5}\\= \frac{8 + 6 + 10 + 8 + 5}{5}\\=\frac{37}{5}=7,4\)
6. \(\text{8, 3, 5, 3, 7}\\= \frac{8 + 3 + 5 + 3 + 7}{5}\\=\frac{26}{5}=5,2\)
7. \(\text{2, 4, 7, 7, 4, 7, 5, 10, 5, 1, 4}\\= \frac{2 + 4 + 7 + 7 + 4 + 7 + 5 + 10 + 5 + 1 + 4}{11}\\=\frac{56}{11}\approx 5,1\)
8. \(\text{10, 4, 6, 6, 9, 6, 9, 2, 1}\\= \frac{10 + 4 + 6 + 6 + 9 + 6 + 9 + 2 + 1}{9}\\=\frac{53}{9}\approx 5,9\)
9. \(\text{10, 1, 5, 1, 4, 3, 3}\\= \frac{10 + 1 + 5 + 1 + 4 + 3 + 3}{7}\\=\frac{27}{7}\approx 3,9\)
10. \(\text{8, 4, 6, 9, 1, 8, 10, 8}\\= \frac{8 + 4 + 6 + 9 + 1 + 8 + 10 + 8}{8}\\=\frac{54}{8}\approx 6,8\)
11. \(\text{4, 2, 9, 5, 2, 5, 3, 10, 5}\\= \frac{4 + 2 + 9 + 5 + 2 + 5 + 3 + 10 + 5}{9}\\=\frac{45}{9}=5\)
12. \(\text{7, 9, 9, 2, 9, 6, 8, 8, 7, 9, 10, 10}\\= \frac{7 + 9 + 9 + 2 + 9 + 6 + 8 + 8 + 7 + 9 + 10 + 10}{12}\\=\frac{94}{12}\approx 7,8\)