For every 7 questions Anthony answers correctly, he typically answers 3 incorrectly. There are 30 questions on a test. How many questions would Anthony be expected to answer incorrectly? A.
9 questions

B.
10 questions

C.
21 questions

D.
27 questions

i believe the answer is d.

hope it you! : d

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 %

it is 10.6 according to my calculations

answer is  

a.

p = 78

step-by-step explanation: