) Here is a made-up set of data for a sample of breakfast cereals. With a made-up variable: Ingredient A 60 78 60 601% 50 50 143 ratings 40 40 ratings ratings 40 30 30 30 20 20 - - . 20 16-20 0 10 5 10 15 20 0-3.999 4-7.999 count 8-11.999 12-15.999 Ingredient A Ingredient A a) In the second graph we see that Ingredient A accounts for a lot of the variability in ratings about the mean of 43. Give two observations to support this statement. b) What percentage of the total variation in ratings is explained by ingredient A? How do you know