Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{9, 6, 1, 6, 5, 10, 5, 2}\\= \frac{9 + 6 + 1 + 6 + 5 + 10 + 5 + 2}{8}\\=\frac{44}{8}=5{,}5\)
2. \(\text{4, 9, 4, 7, 8}\\= \frac{4 + 9 + 4 + 7 + 8}{5}\\=\frac{32}{5}=6{,}4\)
3. \(\text{7, 9, 4, 1, 2, 2, 10, 6, 2, 10}\\= \frac{7 + 9 + 4 + 1 + 2 + 2 + 10 + 6 + 2 + 10}{10}\\=\frac{53}{10}=5{,}3\)
4. \(\text{1, 7, 4, 7, 1, 7, 5, 5, 6, 7}\\= \frac{1 + 7 + 4 + 7 + 1 + 7 + 5 + 5 + 6 + 7}{10}\\=\frac{50}{10}=5\)
5. \(\text{2, 10, 8, 2, 4}\\= \frac{2 + 10 + 8 + 2 + 4}{5}\\=\frac{26}{5}=5{,}2\)
6. \(\text{7, 3, 2, 1, 2, 8, 8, 3, 10}\\= \frac{7 + 3 + 2 + 1 + 2 + 8 + 8 + 3 + 10}{9}\\=\frac{44}{9}\approx 4{,}9\)
7. \(\text{1, 6, 5, 3, 8, 10, 9}\\= \frac{1 + 6 + 5 + 3 + 8 + 10 + 9}{7}\\=\frac{42}{7}=6\)
8. \(\text{5, 7, 1, 7, 10, 7, 9, 8}\\= \frac{5 + 7 + 1 + 7 + 10 + 7 + 9 + 8}{8}\\=\frac{54}{8}\approx 6{,}8\)
9. \(\text{9, 6, 1, 1, 7, 4}\\= \frac{9 + 6 + 1 + 1 + 7 + 4}{6}\\=\frac{28}{6}\approx 4{,}7\)
10. \(\text{8, 8, 3, 1, 5, 8, 7, 4, 2, 10, 3, 4}\\= \frac{8 + 8 + 3 + 1 + 5 + 8 + 7 + 4 + 2 + 10 + 3 + 4}{12}\\=\frac{63}{12}\approx 5{,}3\)
11. \(\text{2, 9, 9, 8, 5, 6, 9, 1, 7, 4, 2, 3}\\= \frac{2 + 9 + 9 + 8 + 5 + 6 + 9 + 1 + 7 + 4 + 2 + 3}{12}\\=\frac{65}{12}\approx 5{,}4\)
12. \(\text{6, 1, 7, 2, 9, 3, 10, 8}\\= \frac{6 + 1 + 7 + 2 + 9 + 3 + 10 + 8}{8}\\=\frac{46}{8}\approx 5{,}8\)