min_valuemax_value pair min_valueavg_valuemax_value triple commas often written with parentheses(min_valuemax_value(min_valueavg_valuemax_value these sets of values separated by commas (but not in square brackets to make listare called "tuplesin python sometimes they are written with round brackets around them to make it clearer that they come together but it' the comma that is the active ingredient making them tuplenot the brackets