Ineed it asap! melanie had bags of sand for a sandbox. the sandbox needs bags of sand to fill it.

melanie said she still needs of a bag to fill it. is that answer reasonable?

a.
no, it is not reasonable because .

b.
no, it is not reasonable because .

c.
yes, it is reasonable because .

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 %