Acell phone provider offers a plan that costs $40 per month plus $0.20 per text message sent or received. a comparable plan costs $60per month but offers unlimited text messaging. complete parts a. and b. below. a. how many text messages would have to be sent or received in order for the plans to cost the same each month? in order for the plans to cost the text messages would have to be sent or receive

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 %