Final answer:
The correct answer to Patrick's plan to analyze emergency room visits is statistical analysis. The correct answer is D) statistical analysis.
Step-by-step explanation:
Patrick plans to take a random sample of recent emergency room visits to carry out a statistical analysis. This means that he will use statistical methods to analyze the data from the random sample and draw conclusions about the distribution of emergency room visits across the days of the week.
For example, Patrick might calculate the average number of emergency room visits on each day of the week and compare these averages to see if there are any significant differences. He could also use statistical tests to determine if the distribution of visits is evenly distributed or if there is a pattern or trend.