1.From the given options, which of the following metrics measures the certainty of a rule by
using threshold?
(a) support (b) confidence
(c) lift (d) cross-ratio
2. How many numbers of frequent itemsets are possible of a dataset that contains k items?
(a) 2k – 1 (b) 2k
(c) 2k + 1 (d) 2k+1
3. From the given options, which of the following packages provides the functionality for
association rules?
(a) arules() (b) ts()
(c) stat() (d) matrix()
4. From the given options, which of the following functions combines the item matrices?
(a) image() (b) combine()
(c) c() (d) dim()
5. From the given options, which of the following functions returns the dimension of an item
matrix?
(a) dimnames() (b) combine()
(c) c() (d) dim()
6. From the given options, which of the following functions returns the frequency of itemset?
(a) itemFrequency() (b) c()
(c) frequency() (d) dim()
7. From the given options, which of the following functions displays the individual association
of the itemsets or rules?
(a) image() (b) inspect()
(c) items() (d) dim()
8. From the given options, which of the following functions returns a set of items of the
itemsets?
(a) image() (b) inspect()
(c) items() (d) dim()