Sales representatives at a car dealership were split into two groups. One group used an aggressive approach to sell a customer a new automobile. The other group used a passive approach. The following table summarizes the records for 646 customers. If one of these customers is selected at random, determine the probability that the passive approach was used. Approach Aggressive Sale 109 Passive 201 Total 310 No Sale 246 Total 355 90 291 336 646 The probability that the passive approach was used is (Type an integer or a simplified fraction.) *****