Question: A firm is accustomed to training operators who do certain tasks on a production line. Those operators who attend the training course are known to

A firm is accustomed to training operators who do certain tasks on a production line. Those operators who attend the training course are known to be able to meet their production quotas 90% of the time. New operators who do not take the training course only meet their quotas 65% of the time. Fifty percent of new operators attend the course. Given that a new operator meets his production quota, what is the probability that he (or she) attended the program?

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