Consider the following table (Table 1): Marital status Sex Hours divorced divorced divorced married married single M M F

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Consider The Following Table Table 1 Marital Status Sex Hours Divorced Divorced Divorced Married Married Single M M F 1 (73.56 KiB) Viewed 37 times

In this table, it reports, among other attributes, the marital
status, the sex, the working hours of
individuals, and whether they suffer from hypertension. Assume
attributes Marital status, Sex, and
Hours, these three attributes jointly constitute the
quasi-identifier. Note that the representation has
been simplified by collapsing tuples with the same
quasi-identifying values into a single tuple. The
numbers at the right hand side of the table report, for each tuple,
the number of actual occurrences,
also specifying how many of these occurrences have values Y and N,
respectively, for attribute
Hypertension.
For example, if we query with “Single, M, 40”, we get 26 results,
where 6 of them with Y for the
attribute Hypertension, and 20 with N.
Question a: What is the k value if we say this table enforces
k-anonymity? Why?
Question b: Suppose we perform generalization of the attributes on
Marital status and Sex
according to the scheme below:

Consider The Following Table Table 1 Marital Status Sex Hours Divorced Divorced Divorced Married Married Single M M F 2 (15.55 KiB) Viewed 37 times

Consider the following table (Table 1): Marital status Sex Hours divorced divorced divorced married married single M M F M F M 35 40 35 35 50 40 #tuples (Hyp. values) 2 (OY, 2N) 17 (16Y, IN) 2 (ΟΥ, 2N) 10 (8Y, 2N) 9 (2Y, 7N) 26 (6Y, 20N)

any.marital status any sex been married never_married F M married divorced single