Final answer:
The MIN function in a Totals Row is used to calculate the least valued data item in a group. It finds the smallest numeric value in a column.
Step-by-step explanation:
To calculate the least valued data item in a group using a Totals Row, you would use the MIN function. This function scans through a column of numeric data and returns the smallest value present in that column. It is particularly useful when analyzing datasets to understand the range of values present, as it gives an insight into the minimum threshold of the data set.
For instance, if you have a column that records the scores of students in a test, using the MIN function in the Totals Row will give you the score of the lowest-performing student, which is the least valued data item in that group of scores.