If your grocery bills over the last four weeks were $203, $195, $180 and $238, what was the average bill

To figure this out all you need to do is add all of the grocery bills and divide that number by 4...

$206

Step-by-step explanation:

203+195+180+238

Take that answer and divide it by 4

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 %