jill and mandy are considering whether to go to a party. if their friend donna does not go, the probability that jill will attend if 0.4 and the probability that mandy will attend is 0.6. if donna does go to the party, jill and andy's probabilities will increase to 0.5 and 0.7 respectively. The probability that donna will go to the party is 0.8- Find the probability that exactly two of the three friends will attend