Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{4, 7, 7, 2, 1}\\= \frac{4 + 7 + 7 + 2 + 1}{5}\\=\frac{21}{5}=4{,}2\)
2. \(\text{3, 1, 2, 8, 2, 10, 8, 4}\\= \frac{3 + 1 + 2 + 8 + 2 + 10 + 8 + 4}{8}\\=\frac{38}{8}\approx 4{,}8\)
3. \(\text{4, 7, 9, 5, 2}\\= \frac{4 + 7 + 9 + 5 + 2}{5}\\=\frac{27}{5}=5{,}4\)
4. \(\text{3, 2, 5, 6, 8, 6}\\= \frac{3 + 2 + 5 + 6 + 8 + 6}{6}\\=\frac{30}{6}=5\)
5. \(\text{6, 1, 5, 1, 2}\\= \frac{6 + 1 + 5 + 1 + 2}{5}\\=\frac{15}{5}=3\)
6. \(\text{1, 2, 7, 9, 4}\\= \frac{1 + 2 + 7 + 9 + 4}{5}\\=\frac{23}{5}=4{,}6\)
7. \(\text{7, 3, 4, 8, 1, 1}\\= \frac{7 + 3 + 4 + 8 + 1 + 1}{6}\\=\frac{24}{6}=4\)
8. \(\text{7, 7, 10, 6, 8, 6, 6, 9, 8, 1}\\= \frac{7 + 7 + 10 + 6 + 8 + 6 + 6 + 9 + 8 + 1}{10}\\=\frac{68}{10}=6{,}8\)
9. \(\text{8, 3, 6, 4, 3, 3, 1, 9, 5, 2, 3, 6}\\= \frac{8 + 3 + 6 + 4 + 3 + 3 + 1 + 9 + 5 + 2 + 3 + 6}{12}\\=\frac{53}{12}\approx 4{,}4\)
10. \(\text{1, 10, 4, 7, 7, 7, 5, 5, 7}\\= \frac{1 + 10 + 4 + 7 + 7 + 7 + 5 + 5 + 7}{9}\\=\frac{53}{9}\approx 5{,}9\)
11. \(\text{10, 3, 7, 5, 6, 4, 8, 6, 3, 1, 3}\\= \frac{10 + 3 + 7 + 5 + 6 + 4 + 8 + 6 + 3 + 1 + 3}{11}\\=\frac{56}{11}\approx 5{,}1\)
12. \(\text{10, 9, 5, 10, 8, 2, 7, 1, 4, 5, 1}\\= \frac{10 + 9 + 5 + 10 + 8 + 2 + 7 + 1 + 4 + 5 + 1}{11}\\=\frac{62}{11}\approx 5{,}6\)