Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{6, 8, 9, 1, 7, 8, 7, 6, 7}\\= \frac{6 + 8 + 9 + 1 + 7 + 8 + 7 + 6 + 7}{9}\\=\frac{59}{9}\approx 6{,}6\)
2. \(\text{9, 4, 7, 4, 10, 10, 9, 10, 6, 7}\\= \frac{9 + 4 + 7 + 4 + 10 + 10 + 9 + 10 + 6 + 7}{10}\\=\frac{76}{10}=7{,}6\)
3. \(\text{1, 3, 2, 7, 2, 4, 5, 9, 6, 3, 5}\\= \frac{1 + 3 + 2 + 7 + 2 + 4 + 5 + 9 + 6 + 3 + 5}{11}\\=\frac{47}{11}\approx 4{,}3\)
4. \(\text{2, 2, 2, 8, 6}\\= \frac{2 + 2 + 2 + 8 + 6}{5}\\=\frac{20}{5}=4\)
5. \(\text{2, 5, 5, 8, 8, 10, 1, 5, 2}\\= \frac{2 + 5 + 5 + 8 + 8 + 10 + 1 + 5 + 2}{9}\\=\frac{46}{9}\approx 5{,}1\)
6. \(\text{4, 8, 9, 4, 10, 2}\\= \frac{4 + 8 + 9 + 4 + 10 + 2}{6}\\=\frac{37}{6}\approx 6{,}2\)
7. \(\text{3, 5, 8, 7, 8}\\= \frac{3 + 5 + 8 + 7 + 8}{5}\\=\frac{31}{5}=6{,}2\)
8. \(\text{5, 7, 1, 2, 7, 4, 9, 1, 5, 5, 3, 4}\\= \frac{5 + 7 + 1 + 2 + 7 + 4 + 9 + 1 + 5 + 5 + 3 + 4}{12}\\=\frac{53}{12}\approx 4{,}4\)
9. \(\text{2, 1, 5, 6, 9, 10, 8, 7, 9, 3}\\= \frac{2 + 1 + 5 + 6 + 9 + 10 + 8 + 7 + 9 + 3}{10}\\=\frac{60}{10}=6\)
10. \(\text{3, 2, 5, 5, 7, 10, 9, 6, 3, 7, 4}\\= \frac{3 + 2 + 5 + 5 + 7 + 10 + 9 + 6 + 3 + 7 + 4}{11}\\=\frac{61}{11}\approx 5{,}5\)
11. \(\text{8, 5, 9, 5, 10, 2, 6, 3, 3, 2, 6, 4}\\= \frac{8 + 5 + 9 + 5 + 10 + 2 + 6 + 3 + 3 + 2 + 6 + 4}{12}\\=\frac{63}{12}\approx 5{,}3\)
12. \(\text{10, 6, 10, 9, 6, 9, 7}\\= \frac{10 + 6 + 10 + 9 + 6 + 9 + 7}{7}\\=\frac{57}{7}\approx 8{,}1\)