Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{4, 3, 9, 1, 2, 7, 7, 5}\\= \frac{4 + 3 + 9 + 1 + 2 + 7 + 7 + 5}{8}\\=\frac{38}{8}\approx 4,8\)
2. \(\text{8, 6, 3, 2, 6}\\= \frac{8 + 6 + 3 + 2 + 6}{5}\\=\frac{25}{5}=5\)
3. \(\text{5, 9, 7, 6, 5, 4, 1, 2, 9, 4, 1, 9}\\= \frac{5 + 9 + 7 + 6 + 5 + 4 + 1 + 2 + 9 + 4 + 1 + 9}{12}\\=\frac{62}{12}\approx 5,2\)
4. \(\text{10, 7, 3, 4, 1, 1, 8, 4}\\= \frac{10 + 7 + 3 + 4 + 1 + 1 + 8 + 4}{8}\\=\frac{38}{8}\approx 4,8\)
5. \(\text{4, 2, 3, 1, 10, 3, 10, 4, 10}\\= \frac{4 + 2 + 3 + 1 + 10 + 3 + 10 + 4 + 10}{9}\\=\frac{47}{9}\approx 5,2\)
6. \(\text{1, 7, 6, 10, 6, 2, 4}\\= \frac{1 + 7 + 6 + 10 + 6 + 2 + 4}{7}\\=\frac{36}{7}\approx 5,1\)
7. \(\text{8, 2, 2, 7, 7, 5, 7, 10, 9, 9}\\= \frac{8 + 2 + 2 + 7 + 7 + 5 + 7 + 10 + 9 + 9}{10}\\=\frac{66}{10}=6,6\)
8. \(\text{1, 6, 7, 8, 3, 2}\\= \frac{1 + 6 + 7 + 8 + 3 + 2}{6}\\=\frac{27}{6}=4,5\)
9. \(\text{1, 5, 8, 8, 1, 8, 6, 5}\\= \frac{1 + 5 + 8 + 8 + 1 + 8 + 6 + 5}{8}\\=\frac{42}{8}\approx 5,3\)
10. \(\text{10, 3, 6, 3, 3, 4, 5, 3, 5, 2, 5, 5}\\= \frac{10 + 3 + 6 + 3 + 3 + 4 + 5 + 3 + 5 + 2 + 5 + 5}{12}\\=\frac{54}{12}=4,5\)
11. \(\text{5, 7, 8, 7, 1}\\= \frac{5 + 7 + 8 + 7 + 1}{5}\\=\frac{28}{5}=5,6\)
12. \(\text{8, 9, 1, 6, 10, 9, 4}\\= \frac{8 + 9 + 1 + 6 + 10 + 9 + 4}{7}\\=\frac{47}{7}\approx 6,7\)