Four individuals have responded to a request by a blood bank for blood donations. None of them has donated before, so their blood types are unknown. Suppose only type O is desired and only one of the four actually has this type. If the potential donors are selected in random order for typing, what is the probability that at least three individuals must be typed to obtain the desired type

answer: what in the world is this

step-by-step explanation:

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof