Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{9, 2, 7, 3, 2}\\= \frac{9 + 2 + 7 + 3 + 2}{5}\\=\frac{23}{5}=4{,}6\)
2. \(\text{2, 10, 2, 6, 2, 9, 9, 6, 2, 10, 9}\\= \frac{2 + 10 + 2 + 6 + 2 + 9 + 9 + 6 + 2 + 10 + 9}{11}\\=\frac{67}{11}\approx 6{,}1\)
3. \(\text{4, 1, 6, 6, 3, 8}\\= \frac{4 + 1 + 6 + 6 + 3 + 8}{6}\\=\frac{28}{6}\approx 4{,}7\)
4. \(\text{5, 2, 5, 3, 10, 9, 10, 10, 7, 10, 9}\\= \frac{5 + 2 + 5 + 3 + 10 + 9 + 10 + 10 + 7 + 10 + 9}{11}\\=\frac{80}{11}\approx 7{,}3\)
5. \(\text{1, 2, 5, 4, 7, 8, 2, 3, 10, 5}\\= \frac{1 + 2 + 5 + 4 + 7 + 8 + 2 + 3 + 10 + 5}{10}\\=\frac{47}{10}=4{,}7\)
6. \(\text{7, 2, 10, 5, 1, 10, 5}\\= \frac{7 + 2 + 10 + 5 + 1 + 10 + 5}{7}\\=\frac{40}{7}\approx 5{,}7\)
7. \(\text{2, 10, 10, 9, 10, 10, 7, 5, 3, 2, 6, 2}\\= \frac{2 + 10 + 10 + 9 + 10 + 10 + 7 + 5 + 3 + 2 + 6 + 2}{12}\\=\frac{76}{12}\approx 6{,}3\)
8. \(\text{8, 4, 9, 4, 2, 6, 9, 2, 8, 4, 2}\\= \frac{8 + 4 + 9 + 4 + 2 + 6 + 9 + 2 + 8 + 4 + 2}{11}\\=\frac{58}{11}\approx 5{,}3\)
9. \(\text{2, 9, 5, 4, 5, 4, 10, 2}\\= \frac{2 + 9 + 5 + 4 + 5 + 4 + 10 + 2}{8}\\=\frac{41}{8}\approx 5{,}1\)
10. \(\text{4, 4, 10, 2, 10, 4, 2, 2, 10}\\= \frac{4 + 4 + 10 + 2 + 10 + 4 + 2 + 2 + 10}{9}\\=\frac{48}{9}\approx 5{,}3\)
11. \(\text{7, 7, 9, 5, 2, 5, 5, 7, 4, 5, 4}\\= \frac{7 + 7 + 9 + 5 + 2 + 5 + 5 + 7 + 4 + 5 + 4}{11}\\=\frac{60}{11}\approx 5{,}5\)
12. \(\text{7, 1, 10, 4, 10, 2, 6, 3, 6}\\= \frac{7 + 1 + 10 + 4 + 10 + 2 + 6 + 3 + 6}{9}\\=\frac{49}{9}\approx 5{,}4\)