PLEASE HELP IM RUNNING OUT OF TIME THANK YOU A person with type AB blood can donate red blood cells to people with the same blood type. About 12% of the US population has type AB blood. University High held a blood drive where 50 students donated blood.
A: What is the probability that EXACTLY 8 of the students had type AB blood?
B: What is the probability that at LEAST 8 of the students had type AB blood?

0.84 dang lotta people are looking for this lol or if you round up its 1 but the overall answer to that is 0.84

step-by-step explanation:

3 is greater then both of those numbers

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3