What is the median concentration of nickel in the samples?

To determine the median concentration of nickel in the samples, it is essential to understand that the median is the middle value when the data set is arranged in numerical order. If the number of samples is odd, the median is simply the middle value; if even, it’s the average of the two middle values.

In this case, the concentration of nickel in the samples must have been organized, and the middle value – which is the median – has been identified as 8.7 mg/L. This indicates that when the nickel concentrations were arranged sequentially, 8.7 mg/L stands as the value at the midpoint, effectively dividing the data set into two equal halves.

The correctness of this answer reflects a proper understanding of how to calculate the median. It emphasizes the importance of accurate data analysis and statistical calculations in environmental compliance inspections, where determining the concentration of substances is crucial for assessing environmental health and readiness to meet regulatory standards.