Question Statement :

Isiah has a corporate proposal. The probability that vice-president Alan will approve the proposal is 0.7. The probability that vice-president Brody will approve the proposal is 0.5. The probability that vice-president Christa will approve the proposal is 0.4. The approvals of the three VPs are entirely independent of one another.

Suppose the Isiah must get VP Alan’s approval, as well as the approval of at least one of the other VPs, Brody or Christa, to win funding. What is the probability that Isiah’s proposal is funded?