1) [The confidence for the association rule {bread} >> {milk, cheese) was determined to be 0.90. What does the value 0.90 mean? all we rejected the null hypothesis of no relationship at the 10% significance level. b) We rejected the null hypothesis of no relationship at the 5% significance level. c) 90% of all the transactions contain all three of bread, milk and cheese. d) 90% of all the transactions contain at least one of bread, milk or cheese. e) 90% of the transactions which contain bread also contain both milk and cheese. f) 90% of the transactions which contain both milk and cheese also contain bread