Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{8, 4, 9, 6, 7, 6, 7, 7}\\= \frac{8 + 4 + 9 + 6 + 7 + 6 + 7 + 7}{8}\\=\frac{54}{8}\approx 6,8\)
2. \(\text{10, 6, 8, 5, 8, 5, 10, 9, 7, 1, 2}\\= \frac{10 + 6 + 8 + 5 + 8 + 5 + 10 + 9 + 7 + 1 + 2}{11}\\=\frac{71}{11}\approx 6,5\)
3. \(\text{10, 6, 5, 9, 9, 10, 1, 2, 6, 6}\\= \frac{10 + 6 + 5 + 9 + 9 + 10 + 1 + 2 + 6 + 6}{10}\\=\frac{64}{10}=6,4\)
4. \(\text{7, 2, 5, 2, 5, 4, 6}\\= \frac{7 + 2 + 5 + 2 + 5 + 4 + 6}{7}\\=\frac{31}{7}\approx 4,4\)
5. \(\text{9, 5, 1, 3, 1, 7, 7, 3}\\= \frac{9 + 5 + 1 + 3 + 1 + 7 + 7 + 3}{8}\\=\frac{36}{8}=4,5\)
6. \(\text{4, 9, 7, 6, 4, 8}\\= \frac{4 + 9 + 7 + 6 + 4 + 8}{6}\\=\frac{38}{6}\approx 6,3\)
7. \(\text{1, 10, 5, 4, 2, 5, 5, 7, 3}\\= \frac{1 + 10 + 5 + 4 + 2 + 5 + 5 + 7 + 3}{9}\\=\frac{42}{9}\approx 4,7\)
8. \(\text{5, 9, 7, 4, 9, 8, 5, 4, 3, 5, 3, 8}\\= \frac{5 + 9 + 7 + 4 + 9 + 8 + 5 + 4 + 3 + 5 + 3 + 8}{12}\\=\frac{70}{12}\approx 5,8\)
9. \(\text{6, 6, 9, 3, 7, 6, 10, 3, 7, 6, 1}\\= \frac{6 + 6 + 9 + 3 + 7 + 6 + 10 + 3 + 7 + 6 + 1}{11}\\=\frac{64}{11}\approx 5,8\)
10. \(\text{10, 7, 7, 2, 4, 7, 3}\\= \frac{10 + 7 + 7 + 2 + 4 + 7 + 3}{7}\\=\frac{40}{7}\approx 5,7\)
11. \(\text{1, 2, 1, 1, 5, 7, 9}\\= \frac{1 + 2 + 1 + 1 + 5 + 7 + 9}{7}\\=\frac{26}{7}\approx 3,7\)
12. \(\text{10, 2, 4, 2, 3, 9, 4, 6}\\= \frac{10 + 2 + 4 + 2 + 3 + 9 + 4 + 6}{8}\\=\frac{40}{8}=5\)