Question

A train can be either early, late or on time.

The probability that the train is early is 0.2
the probability that the train is on time is 0.5

work out the probability that the train is late

Answer 1

0.3

Explanation:

Probability always adds up to 1 or 100%

in this case 0.2 + 0.5 = 0.7

1.0 - 0.7 = 0.3

hope this helps! :)