The question is in the picture, the question is if the four diagrams shown are functions or not and you have to start what the domains and ranges are of each

step-by-step explanation: 4 cause 2+2=4

stethere all not eveanp-by-step explanation:

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 %