1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Entity 1 Student Student ClassRoom Country Course Item (that can be found in an order) Student Class Instructor E-bay Auction item Cardinality Ratio 1-many A student may have more than one social security card (legally with the same unique social security number), and every social security number belongs to a unique student Entity 2 social security card Teacher Wall CurrentPresident TextBook Order Class Instructor Office E-bay bid

DATABASE MANAGEMENT ABC Walk-in Clinic is located in a large metropolitan city in Canada. The clinic staff consists of ten doctors, six nurses, five office secretaries, two administrative assistants and one manager. First time Patients have to visit the clinic personally and fill a registration form that contains their personal and health related information. An office secretary would then enter that information in the computer based information system.   Patients may become a permanent patient (at any time) for one of the doctors at the clinic by filling up necessary forms (they are called enrolled patients) or they may choose to come walk-in for every visit. (They usually called walk-in patients) Enrolled Patients may book their appointments online or by calling, the office and one of the secretaries would then book their appointment with their doctor on a particular day/time. Any booked appointment may be cancelled up to 24 hours in advance after which the clinic charges a…

Customer ID 123 4 5 6 7 8 9 10 Items of transaction {A,B,E,D}{A,C,D,E}{D,E,A} {E,B,A,C} {B,B,E} {A,E,B} {E,D,E,C} {D,C} {B,D,E} {C,D,E,A} (a)  Use the table shown to compute the support for the itemsets {B,D} and {B,C,E}. (b)  Use the results in part (a) to compute the confidence for the association rules {b,d} {e} (c) How many itemsets can be generated from these items(d) How many association rules can be generated from the itemset {A,B,C,D,E,F}?

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