A race car driver’s goal is to complete a 1000-kilometer auto race in 4 hours or less. The driver’s average speed is 4200 meters
per minute. Does the driver meet the goal? If not, how much faster
(in meters per minute) must the driver be to meet the goal?

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 %

step-by-step explanation:

any of them that add up to 180 degrees.

i believe so, according to my "strange" way of figuring out weird math problems like this.