Help greatly be appreciated!! Entity set A has seven subclasses B1,B2,...,B7 Tha
ID: 3544084 • Letter: H
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Help greatly be appreciated!!
Entity set A has seven subclasses B1,B2,...,B7 That is, Bi,- ISA A for i = 1,2,...,7. Each subclass Bi has seven subcategories, Cij, for j = 1,2,...,7. That is, Cij ISA Bi. Suppose there is an entity e in entity set A. It is possible that e is also in certain subsets of the other entity sets in the hierarchy (the 7 B's and 49 C's). However, there are also some limitations on which subsets can be exactly the set of entity sets in which e is represented. Calculate the following: The number of different subsets of entity sets that could be exactly the entity sets in which c is present. Of those subsets in (1), the number of subsets including B1 and the number of subsets that do not include B1. Of those subsets in (1), the number of subsets including C11 and the number of subsets that do not include C11. Since these numbers are large, you may find it convenient to express them as ab for numbers a and b. Then, identify the true statement about one of these counts from the list of choices below. If c is in C11, there are (2)55 different sets. If c is in C11, there are 64*(129)6 different sets. If c is in B1, there are 64*(128)6 different sets. There arc (2)56 different sets.Explanation / Answer
option B is correct
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