Assume that when adults with smartphones are randomly selected, 58% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 2 of them use their
smartphones in meetings or classes.
The probability is
(Round to four decimal places as needed.).

(-5,-28)

i graphed to on desmos.

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 %

provide more details to solve it

step-by-step explanation: