1. Aggregate Functions Aggregate values in multiple rows to one value SUM, AVG, MIN, MAX, COUNT Syntax SELECT SUM (amount), ROUND(AVG (amount), 3) AS AVERAGE -- 3 decimal places FROM payment * Challenge Write a query to see the minimum, maximum, average(rounded), sum of the replacement cost of the films SELECT MIN (replacement_cost), MAX (replacement_cost), ROUND(AVG(replacement_cost), 3) AS AVG..
