Use the following information. 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 650 customers.

If one of these customers is selected at random, determine the probability.

Of no sale, given that the passive approach was used.

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Sale No Sale Approach Total Aggressive 100 250 350 Passive 220 80 300 Total 650 320 330