The number of outcomes when n dice are thrown?
12
6n
n6
If A = { 1, 3, 7 }, B = { 2, 4, 7 }, then A∪B = ___________.
{ 1, 2, 3, 4 }
{ 1, 3, 7, 4, 7 }
{ 1, 2, 3, 4, 7 }
{ 1, 2, 4 }
if n(A) = 10, n(B) = 6, n(A∩B) = 4, then n(A∪B) = ?
16
20
10
The smallest set A such that A ∪ { 1, 2 } = { 1, 2, 3, 5, 9 } is ________.
{ 3, 5, 9 }
{ 2, 3, 5 }
{ 1, 2, 5, 9 }
None of these
Which of the following represent the empty set?
{ }
0
{ 0 }
Let S = { 0, 1, 5, 4, 7 }. Then the total number of subsets of S is_____.
64
32
40
The negation of the statement "5 is a prime number" is__________.
5 is a composite number
5 is a prime number
5 is not a prime number
both (2) and (3)
What is the probability of getting a sum 9 from two throws of a dice?
1/6
1/8
1/9
1/12
If A = { a, b, c, d }, then A ∩ ∅ = ?
{ a, b, c, d }
∅
{ a, b, c, d, 0 }
A set which contains no element is called ___________.
infinite set
empty set
equal set
equivalent set
