I have a list:

lst = [10,20,39,50]

How to calculate the probability in Python that a number picked up from the list is not 10? (An event can be supposed)

CodePudding user response：

The probability of getting 10 from the list is just the number of times 10 appears on the list over the length of the list:

p10 = lst.count(10) / len(lst)

Whereas the probability of NOT getting a 10 is just the complement:

p_not10 = 1 - p10