Which function would you use for rounding a number in Excel?

The ROUND function is specifically designed to round a number to a specified number of digits in Excel. When using this function, you provide two arguments: the number you want to round, and the number of digits to which you want to round that number. For example, ROUND(123.456, 2) would return 123.46, rounding the number to two decimal places.

This function is widely used because it provides a straightforward way to manage numerical data, ensuring that results are presented in a more user-friendly way by limiting the number of decimal places. Rounding can be critical when performing calculations where precision is necessary, such as financial analysis or statistical reporting.

Other functions mentioned serve different purposes: ROUNDUP always rounds numbers up, regardless of the decimal value; RND generates a random number between 0 and 1; and TRUNC removes the decimal portion of a number without rounding, making them unsuitable for standard rounding tasks. Therefore, the ROUND function is the best choice when you need to adjust the precision of numerical data in Excel.