Aclinical cohort consists of seven sets of boy/girl twins (i. e. each twin pair has a brother and a sister). five of the fourteen subjects are randomly selected
a) what is the probability that the selected group is niether all male nor all female?
b) what is the probability that the selected group contains no siblings?

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

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

step-by-step explanation:

30 people weigh 160 pounds or more