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First when your on the main page (press the icon to get there) you can scroll threw many question if it has a little answer button next to it click on it and you will be taken to the answering page. On the answering page you will type the answer under "" and you explanation and or work under "Step-by-step explanation:" If you need more I can tell you in the comments below my answer!

Step-by-step explanation:

            May I have brainiest please I'm trying to level up!

                       </3 PureBeauty

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 %

3

step-by-step explanation: