+ --

Similarly, 19.7% of the bags will have too many marbles, which will not disappoint the customers but will increase manufacturing expenses. Process B is a much more tightly controlled operation in that only 1.86%of the bags will have an incorrect number of marbles. In addition, approximately half of these bags will have zero marbles, probably due to a bag-handling malfunction, which may not be a problem since this can be an easy condition to detect on inspection.