If one of the 255 subjects is randomly selected, find the probability that the person is over 40 given that he or she is a root beer drinker.

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870