Please help me with equation

fsfd

step-by-step explanation:

fdddff

765238725478629038640962136509762139056074

step-by-step explanation:

64087235609746097215074621039754021037

r = 78539458390583095803458309458039485093485 or just 3

step-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 %