If there are 10 jelly beans in a bag, 1 is green and 9 are red, what is the likelihood (probability) that you will get a red jelly bean?
The answer is ... very likely! (Très probable)
Why?
Because there are a lot more red jelly beans than green jelly bean.
What is the chance (probability) that you will get a green jelly bean?
Unlikely (peu probable), because there is only 1 green jelly bean compared to the 9 red jelly beans in the bag.
What is the likelihood (probability) that you get a blue jelly bean?
Impossible (impossible), because there is no blue jelly bean in the bag.
What is the chance that you get a red jelly bean if the bag contains only red beans?
The likelihood (probability) is certain (certain) because there are only red jelly beans in the bag.
----------------------------------------------------------------------------------------------
If we want to calculate the likelihood (probability) of getting a green jelly bean in a bag with 10 jelly beans, we simply need to know how many green jelly bean there are and the total number of beans.
Number of green jelly bean = 1
Total number of jelly beans = 10
Probability (likelihood) of getting a green jelly bean = 1 out of 10 = 1 / 10
What is the probability (likelihood) that you get a red jelly bean out of the bag?
Number of red jelly beans = 9
Total number of jelly beans = 10
Probability (likelihood) of getting a red jelly bean = 9 out of 10 = 9 / 10
