Which function would provide a compressed list of unique standards assessed?

The function that provides a compressed list of unique standards assessed is the one that directly extracts distinct values from a specified range. The correct answer utilizes the "unique" function, which is specifically designed to filter out duplicate entries from a dataset. In this case, using the "unique" function on the specified range, such as E:E, results in a list of only the distinct entries found in that column, effectively achieving the goal of obtaining a compressed list of unique standards.

The other functions do not serve this purpose. The "concat" function combines text from multiple cells without filtering for uniqueness, while the "sum" function adds numerical values together and does not deal with uniqueness at all. Lastly, the "count" function tallies the number of entries in a given range but does not provide a unique list. Thus, the unique function is the only one that accomplishes the task of delivering distinct standards effectively.