Question 9 1 pts
Of the 400 students in the 8th grade, four-
fifths have purchased tickets for the endo of
the year trip. If there needs to be two
chaperones for every 75 students, how
many chaperones are needed?

answer:   rlly

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 %

i'm sorry mate, but i am not seeing any figures. i am unable to solve this for you.