Which of the following are types of reference lines in Power BI? Select all that apply.

In Power BI, reference lines are used to enhance the visualization of data by providing context such as averages, thresholds, or statistics. The correct choice of median represents a type of reference line that indicates the middle value of a dataset when it is ordered from least to greatest. This is particularly useful to understand where the center of the data lies and helps users quickly identify how values are distributed around this central point.

Using medians as reference lines is essential in exploratory data analysis as it is less affected by outliers compared to the mean and gives a more accurate representation of the typical value in skewed distributions. This functionality aids users in making data-driven decisions by readily visualizing key statistical intervals.

Other types of reference lines, like max, percentile, and standard deviation, play important roles in data analysis as well. For instance, max reflects the highest value in a dataset, while percentile lines can help visualize ranges within which certain percentages of the data lie. Standard deviation gives insights into the variability of the data. However, they are not classified as standard reference lines in the same way that the median is. The median stands out as a foundational statistic in Power BI visualizations, reinforcing its role as a type of reference line.