Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{7, 9, 6, 3, 8, 3, 7, 1, 5}\\= \frac{7 + 9 + 6 + 3 + 8 + 3 + 7 + 1 + 5}{9}\\=\frac{49}{9}\approx 5{,}4\)
2. \(\text{7, 2, 1, 4, 1, 4, 4, 10}\\= \frac{7 + 2 + 1 + 4 + 1 + 4 + 4 + 10}{8}\\=\frac{33}{8}\approx 4{,}1\)
3. \(\text{7, 4, 1, 4, 8, 7, 4}\\= \frac{7 + 4 + 1 + 4 + 8 + 7 + 4}{7}\\=\frac{35}{7}=5\)
4. \(\text{5, 10, 4, 9, 3, 7, 8, 8, 8, 8}\\= \frac{5 + 10 + 4 + 9 + 3 + 7 + 8 + 8 + 8 + 8}{10}\\=\frac{70}{10}=7\)
5. \(\text{10, 6, 5, 7, 10, 1, 2}\\= \frac{10 + 6 + 5 + 7 + 10 + 1 + 2}{7}\\=\frac{41}{7}\approx 5{,}9\)
6. \(\text{9, 10, 10, 5, 1, 5, 8, 7, 4, 9}\\= \frac{9 + 10 + 10 + 5 + 1 + 5 + 8 + 7 + 4 + 9}{10}\\=\frac{68}{10}=6{,}8\)
7. \(\text{7, 6, 8, 6, 6, 7, 4, 8}\\= \frac{7 + 6 + 8 + 6 + 6 + 7 + 4 + 8}{8}\\=\frac{52}{8}=6{,}5\)
8. \(\text{2, 4, 3, 9, 3, 4, 9, 6}\\= \frac{2 + 4 + 3 + 9 + 3 + 4 + 9 + 6}{8}\\=\frac{40}{8}=5\)
9. \(\text{8, 7, 9, 4, 10, 4, 4, 2, 2, 5, 9, 9}\\= \frac{8 + 7 + 9 + 4 + 10 + 4 + 4 + 2 + 2 + 5 + 9 + 9}{12}\\=\frac{73}{12}\approx 6{,}1\)
10. \(\text{6, 5, 5, 3, 5}\\= \frac{6 + 5 + 5 + 3 + 5}{5}\\=\frac{24}{5}=4{,}8\)
11. \(\text{5, 1, 4, 8, 5, 4, 4, 3}\\= \frac{5 + 1 + 4 + 8 + 5 + 4 + 4 + 3}{8}\\=\frac{34}{8}\approx 4{,}3\)
12. \(\text{4, 8, 3, 1, 2, 6, 9, 2, 6, 6, 6}\\= \frac{4 + 8 + 3 + 1 + 2 + 6 + 9 + 2 + 6 + 6 + 6}{11}\\=\frac{53}{11}\approx 4{,}8\)