Your team developed a machine learning tool for a hospital. The tool takes X$-$ray images as inputs, and for each image input, it outputs the decision on whether or not lung cancer is detected from the X$-$ray. You learned from the hospital that $95\%$ of people who took the X$-$ray do not have lung cancer. If a patient took multiple X$-$ray exams, only the most recent one would appear in the dataset. Your model achieved $90\%$ accuracy, meaning that $90\%$ of the decisions your model made are correct.Which of the following statements is incorrect?