When visiting a previously undiscovered planet, the crew of the Enterprise would often send a team to scout out the terrain. This crew typically included either Captain Kirk or Lieutenant Spock or both. Suppose that the away team included Kirk 60% of the time. The away team included Spock 70% of the time. Given that Spock was in the away team, Kirk was also in the away team 80% of the time. c) If Spock was not included in the away team, what is the probability that Kirk was also not included in the away team?