Table 2 Basket Number Itemsets {pencils, paper, calculator} {paper, backpack, calculator} {binder, erasers, calculator} {pencils, calculator, backpack} {paper, backpack} | 000 voown {paper, calculator} {binder, erasers, pencils} {pencils, calculator, binder, erasers} {pencils, calculator, binder, erasers} 10 {binder, erasers, backpack} 2. Use Table 2 to answer the questions below: a. (15 points) Find a pair of items, a and b, such that rules {a} - {b} and {b} - {a} have the same confidence. b. (15 points) Use the a-priori algorithm and a support threshold of 3 to find all of the frequent itemsets of size 1, 2, and 3