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Answers by neha.i

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Commodity items have some positive or negative changes in their prices each week. Each trading company picks a portfolio of com- modity items, that is, they have one or more items and they own some non-zero quantity of each one. The database table for this problem consists ... other items and there exists at least one company selling that item only (i.e., not selling any other item) in that week
answered May 9, 2017 in Databases 192 views
17 votes
In how many ways can three person, each throwing a single die once, make a score of $11$ $22$ $27$ $24$ $38$
answered Apr 3, 2017 in Combinatory 1.3k views
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How many relations are there on the set {a, b, c, d} that contain the pair (a, a)?
answered Mar 31, 2017 in Set Theory & Algebra 109 views
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A and B are two candidates appearing for an interview by a company. The probability that A is selected is 0.5 and the probability that both A and B are selected is at most 0.3. The probability of B getting selected is (a) 0.9 (b) 0.3 (c) 0.6 (d) 0.5
answered Mar 8, 2017 in Probability 418 views