Wellplace Insurance Company processes insurance policy applications in batches of $50.$ One day, they had twelve batches to process and, after inspection, it was found that four batches had nonconforming policies. One batch had one nonconformance, another had four, another had six, and another had eight nonconformance. A$)$ What was the proportion nonconforming for each batch? Round your answers to two decimal places. B$)$ What was the nonconformance per unit $($NPU$)$ in total for the twelve batches? Round your answer to three decimal places.