A random sample of 5 balls is drawn without replacement from a box that contains 27 black and 3 red balls. What is the probability that the sample contains one red ball?

0.108

0.270

0.369

0.500

C

N= 30 balls

A= 3 red balls

B= 26 black

n=5

C(3,1) x C (27,4)/C(30,5) = 3 x 17750/142506 = .373. Answer should be .369