Given a list of beak lengths in cm: beak_lengths_cm = [1.50, 1.25, 2.30, 2.35, 1.65, 2.30, 2.10, 1.65, 2.70] a) write a function to calculate and return the list's average. b) write a function that takes this list as input and calculates and returns a new list of beak lengths in inches (1 inch = cm * 2.54).