People with 0' blood type are called universal donors because they ntiaj.r give blood to anyone without risking incompatibility due to blood type factors (A or E). 0f the persons donating blood at a elinie1 15% have 0' blood. (a) Find the probability that the rst 0' donor is found after blood typing 5 people who are not 0'. (b) What is the expected number of blood tests needed to obtain the rst 0' donor? (0) Find the probability that the third 0 donor is found after blood typing 5 people who are not 0