Plsss i need help . Joe's Bank has improved its temporary PIN security. Now customers are randomly assigned a 4-digit temporary PIN that uses the digits 5, 6, or 7. Any of these digits may be repeated. How many possible PINs are there?

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 %

18.8cm hope i at all

step-by-step explanation: