Which type of function is typically used to compute averages in queries?

Which type of function is typically used to compute averages in queries?

• A. SUM function
• B. AVG function
• C. COUNT function
• D. MIN function

Answer: (B)

The AVG function is specifically designed to compute the average of a set of numeric values. When utilized in queries, it sums the specified values and then divides that sum by the total number of values, effectively providing the average. This makes it the ideal choice for any requirement to assess mean values within a dataset. The SUM function, while it computes the total of the values, does not calculate an average. COUNT calculates how many records meet a certain criterion without providing any average value. MIN identifies the smallest value in a set but does not analyze the average. Thus, the AVG function stands out as the most appropriate option for calculating averages in queries.

The AVG function is specifically designed to compute the average of a set of numeric values. When utilized in queries, it sums the specified values and then divides that sum by the total number of values, effectively providing the average. This makes it the ideal choice for any requirement to assess mean values within a dataset.

The SUM function, while it computes the total of the values, does not calculate an average. COUNT calculates how many records meet a certain criterion without providing any average value. MIN identifies the smallest value in a set but does not analyze the average. Thus, the AVG function stands out as the most appropriate option for calculating averages in queries.