Erin's father needed to purchase videotapes. He saw two signs: "Top quality tapes--5 for $14.85" and "Great Quality Tapes---3 for $8.85." What was the unit price of each item? Which was a better bargain?

where r the answers

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 %