FREE POINTS btw this is an experiment because i've been asking the same question over and over and nobody is answering it. And if you're reading this right, can you plz try and answer my questions lol

thanks

I will try

Yea, I'll try to answer your questions. Thanks for the point btw

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %