Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{4, 1, 2, 2, 7}\\= \frac{4 + 1 + 2 + 2 + 7}{5}\\=\frac{16}{5}=3{,}2\)
2. \(\text{9, 2, 10, 1, 4}\\= \frac{9 + 2 + 10 + 1 + 4}{5}\\=\frac{26}{5}=5{,}2\)
3. \(\text{10, 4, 4, 7, 6, 5, 2, 3, 3, 2, 1, 4}\\= \frac{10 + 4 + 4 + 7 + 6 + 5 + 2 + 3 + 3 + 2 + 1 + 4}{12}\\=\frac{51}{12}\approx 4{,}3\)
4. \(\text{9, 8, 7, 1, 8, 8, 7, 4, 4, 10, 6, 7}\\= \frac{9 + 8 + 7 + 1 + 8 + 8 + 7 + 4 + 4 + 10 + 6 + 7}{12}\\=\frac{79}{12}\approx 6{,}6\)
5. \(\text{6, 4, 7, 2, 1, 7, 6, 6, 6}\\= \frac{6 + 4 + 7 + 2 + 1 + 7 + 6 + 6 + 6}{9}\\=\frac{45}{9}=5\)
6. \(\text{5, 2, 7, 1, 9, 8, 2, 10, 4}\\= \frac{5 + 2 + 7 + 1 + 9 + 8 + 2 + 10 + 4}{9}\\=\frac{48}{9}\approx 5{,}3\)
7. \(\text{5, 9, 5, 8, 2, 1, 1, 7}\\= \frac{5 + 9 + 5 + 8 + 2 + 1 + 1 + 7}{8}\\=\frac{38}{8}\approx 4{,}8\)
8. \(\text{9, 1, 3, 8, 6, 6, 6}\\= \frac{9 + 1 + 3 + 8 + 6 + 6 + 6}{7}\\=\frac{39}{7}\approx 5{,}6\)
9. \(\text{9, 7, 9, 6, 6, 6, 4}\\= \frac{9 + 7 + 9 + 6 + 6 + 6 + 4}{7}\\=\frac{47}{7}\approx 6{,}7\)
10. \(\text{1, 5, 7, 10, 5, 1, 2, 5}\\= \frac{1 + 5 + 7 + 10 + 5 + 1 + 2 + 5}{8}\\=\frac{36}{8}=4{,}5\)
11. \(\text{1, 3, 7, 4, 2, 5, 2, 7, 7}\\= \frac{1 + 3 + 7 + 4 + 2 + 5 + 2 + 7 + 7}{9}\\=\frac{38}{9}\approx 4{,}2\)
12. \(\text{9, 4, 5, 10, 3, 7, 9}\\= \frac{9 + 4 + 5 + 10 + 3 + 7 + 9}{7}\\=\frac{47}{7}\approx 6{,}7\)