Gemiddelde

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Bereken het gemiddelde

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

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Bereken het gemiddelde

Verbetersleutel

1. \(\text{8, 2, 2, 9, 6, 9, 9, 10, 9, 6, 3}\\= \frac{8 + 2 + 2 + 9 + 6 + 9 + 9 + 10 + 9 + 6 + 3}{11}\\=\frac{73}{11}\approx 6{,}6\)
2. \(\text{8, 2, 2, 4, 9}\\= \frac{8 + 2 + 2 + 4 + 9}{5}\\=\frac{25}{5}=5\)
3. \(\text{7, 6, 10, 6, 10, 4, 2}\\= \frac{7 + 6 + 10 + 6 + 10 + 4 + 2}{7}\\=\frac{45}{7}\approx 6{,}4\)
4. \(\text{7, 4, 1, 2, 3}\\= \frac{7 + 4 + 1 + 2 + 3}{5}\\=\frac{17}{5}=3{,}4\)
5. \(\text{10, 6, 3, 7, 4, 9}\\= \frac{10 + 6 + 3 + 7 + 4 + 9}{6}\\=\frac{39}{6}=6{,}5\)
6. \(\text{10, 9, 7, 8, 2, 1, 9, 6, 9, 6}\\= \frac{10 + 9 + 7 + 8 + 2 + 1 + 9 + 6 + 9 + 6}{10}\\=\frac{67}{10}=6{,}7\)
7. \(\text{3, 4, 10, 4, 10, 8, 2, 10, 9}\\= \frac{3 + 4 + 10 + 4 + 10 + 8 + 2 + 10 + 9}{9}\\=\frac{60}{9}\approx 6{,}7\)
8. \(\text{9, 4, 7, 5, 7, 6, 1, 10, 1, 2, 9}\\= \frac{9 + 4 + 7 + 5 + 7 + 6 + 1 + 10 + 1 + 2 + 9}{11}\\=\frac{61}{11}\approx 5{,}5\)
9. \(\text{10, 5, 3, 9, 5, 2}\\= \frac{10 + 5 + 3 + 9 + 5 + 2}{6}\\=\frac{34}{6}\approx 5{,}7\)
10. \(\text{3, 4, 8, 1, 2, 5, 2, 5, 8}\\= \frac{3 + 4 + 8 + 1 + 2 + 5 + 2 + 5 + 8}{9}\\=\frac{38}{9}\approx 4{,}2\)
11. \(\text{1, 10, 7, 4, 3, 3, 6, 1, 5}\\= \frac{1 + 10 + 7 + 4 + 3 + 3 + 6 + 1 + 5}{9}\\=\frac{40}{9}\approx 4{,}4\)
12. \(\text{5, 4, 9, 2, 8, 4, 8}\\= \frac{5 + 4 + 9 + 2 + 8 + 4 + 8}{7}\\=\frac{40}{7}\approx 5{,}7\)