Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{7, 3, 10, 8, 1, 8, 2, 9, 5, 7, 9}\\= \frac{7 + 3 + 10 + 8 + 1 + 8 + 2 + 9 + 5 + 7 + 9}{11}\\=\frac{69}{11}\approx 6{,}3\)
2. \(\text{5, 7, 6, 4, 2, 3, 8}\\= \frac{5 + 7 + 6 + 4 + 2 + 3 + 8}{7}\\=\frac{35}{7}=5\)
3. \(\text{1, 4, 7, 1, 8, 3, 1, 7}\\= \frac{1 + 4 + 7 + 1 + 8 + 3 + 1 + 7}{8}\\=\frac{32}{8}=4\)
4. \(\text{10, 5, 5, 9, 6, 5, 3, 10, 10, 2, 8}\\= \frac{10 + 5 + 5 + 9 + 6 + 5 + 3 + 10 + 10 + 2 + 8}{11}\\=\frac{73}{11}\approx 6{,}6\)
5. \(\text{8, 7, 4, 2, 5, 6, 7, 2, 7, 2}\\= \frac{8 + 7 + 4 + 2 + 5 + 6 + 7 + 2 + 7 + 2}{10}\\=\frac{50}{10}=5\)
6. \(\text{9, 1, 3, 7, 3, 9, 6, 5}\\= \frac{9 + 1 + 3 + 7 + 3 + 9 + 6 + 5}{8}\\=\frac{43}{8}\approx 5{,}4\)
7. \(\text{10, 9, 8, 2, 6, 3, 6, 3, 8, 2}\\= \frac{10 + 9 + 8 + 2 + 6 + 3 + 6 + 3 + 8 + 2}{10}\\=\frac{57}{10}=5{,}7\)
8. \(\text{5, 6, 8, 9, 5, 7, 9}\\= \frac{5 + 6 + 8 + 9 + 5 + 7 + 9}{7}\\=\frac{49}{7}=7\)
9. \(\text{6, 3, 5, 3, 3, 9, 10, 9, 6}\\= \frac{6 + 3 + 5 + 3 + 3 + 9 + 10 + 9 + 6}{9}\\=\frac{54}{9}=6\)
10. \(\text{8, 7, 4, 6, 5, 1, 4, 3, 1, 5, 7}\\= \frac{8 + 7 + 4 + 6 + 5 + 1 + 4 + 3 + 1 + 5 + 7}{11}\\=\frac{51}{11}\approx 4{,}6\)
11. \(\text{8, 4, 2, 9, 4, 10, 8, 6, 3, 1}\\= \frac{8 + 4 + 2 + 9 + 4 + 10 + 8 + 6 + 3 + 1}{10}\\=\frac{55}{10}=5{,}5\)
12. \(\text{3, 10, 9, 7, 9, 6, 10, 4, 5}\\= \frac{3 + 10 + 9 + 7 + 9 + 6 + 10 + 4 + 5}{9}\\=\frac{63}{9}=7\)