DATA ANALYSIS IN DATA MINING I dont get it

The file "Computer" contains the sales transactions from a local fast-food restaurant. Each binary variable indicates whether or not a product is purchased as part of the sales transaction. Using sales transactions 1 through 5 complete the following tasks: 1. Compute the matching coefficients for all pairwise observations for the 4 binary variables. 2. Compute the Jaccard's coefficients for all pairwise observations for the 4 binary variables. 3. Based on the results from parts 1 & 2, identify and describe the transactions that are the most and least similar to each other. Discuss the difference between the results from part 1 and part 2.Transaction Keyboard Monitor Mouse Memory Card 2 3 1 4 0 (0 00 - O UT 10 11 12 13 14 15 16 17 18 19 20 OOO OOOOOOPC O O P PO POO POOKOOP