1.1 Suppose that the expectation of a random variableX is 5. Which of the following statements is true?
(a) There is a sample point at which X has the value 5.
(b) There is a sample point at which X has value greater than 5.
(c) There is a sample point at which X has a value greater than or equal to 5.
(d) None of the above
I think option (d) is correct.
please correct/comment.
1.21 The maximum gate delay for any output to appear in an array multiplier for multiplying two n bit number is
(a) O(n^2)
(b) O(n)
(c) O(logn)
(d) O(1)
think option (a) is correct
please correct/comment.
2.3 Let L be a set with a
relation R which is transitive, anti-symmetric and reflexive and for
any two elements a, b belongs to L. Let the least upper bound lub(a,b)
and the greatest lower bound glb(a,b) exist. Which of the following
is/are true ?
(a) L isa poset
(b) L is a Boolean Algebra
(c) L is lattice
(d) none of these
Since they mention only lub(a,b) and glb(a,b) exist but don't know about uniqueness ?
so think option (a) is correct.
please correct/comment.
2.20 The minimum number of
record movements required to merge five files A (with 10 records), B
(with 20 records), C (with 15 records), D (with 5 records) and E (with
25 records) is:
(a) 165
(b) 90
(c) 75
(d) 65
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