Kansrekenmachine
Bereken een kans uit gunstige en totale uitkomsten, of combineer twee onafhankelijke gebeurtenissen (A en B, A of B, geen van beide, precies één).
Resultaat
Vul waarden in en tik op Berekenen om het resultaat te zien.
Formule
For equally likely outcomes.
The complement: the event does not happen.
Both happen, when A and B are independent.
At least one happens.
Zo gebruik je deze rekenmachine
- For one event, enter how many outcomes you want and how many there are in total.
- For two independent events, enter each probability as a fraction (1/2) or a decimal (0.5).
Uitgewerkt voorbeeld
3 red balls in a bag of 8
P(red) = 3/8 = 0.375 = 37.5%.
P(not red) = 1 − 3/8 = 5/8.
The odds of red are 3 : 5 (3 for, 5 against).
Veelgestelde vragen
What does independent mean?
One event does not change the chance of the other — like two separate coin flips.
What is the difference between probability and odds?
Probability compares favourable outcomes with all outcomes (3/8); odds compare favourable with unfavourable (3 : 5).