What is the probability of getting a sum 9 from two throws of a dice?
1/6
1/8
1/9
1/12
Let A = { factors of 36 } and B = { factors of 48 } find A∩B?
{ 1, 5, 7, 11 }
{ 1, 2, 3 }
{ 1, 2, 3, 4, 5, 6, 12 }
{ 1, 2, 3, 4, 6, 12 }
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)
A combination of one or more simple statements with a connective is called a _____________.
sentence
conjunction
compound statement
disjunction
Set A and B have 3 and 6 elements respectively. What can be the minimum number of elements in A∪B?
3
6
9
18
if n(A) = 10, n(B) = 6, n(A∩B) = 4, then n(A∪B) = ?
16
20
10
12
The statement of the form " If ... then... " is called ______.
negation
implication
Given that A = { 1, 9, 11, 15, 17 }, B = { 11, 17, 19, 21 } and C = { 3, 5, 7 }. Then (A∩B)∪C = ____________.
{ 11, 17 }
{ 3, 5, 7, 11, 15 }
{ 3, 5, 7, 11, 17 }
{ 3, 5, 7, 11, 17, 19 }
If a dice is thrown, the probability of getting an even number is __________.
2
1/3
1/2
Which of the following represent the empty set?
{ }
0
{ 0 }
None of these
