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BECE Mathematics 2013 Paper
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© africaexams.com
Question : 17
Total: 40
If
S
=
{
1
,
2
,
3
,
4
,
5
,
6
,
7
,
8
,
9
,
10
}
, find the probability that a number selected at random from
S
is odd.
3
8
1
4
1
2
5
8
Validate
Solution:
Probability
=
Number of possible selection
Number of samples
Odd numbers are numbers which are not divisible by 2 without a remainder.
The list of odd numbers from the set
S
are
{
1
,
3
,
5
,
7
,
9
}
Number of possible selection of an odd number
=
5
Number of samples
=
10
Probability of
=
5
10
=
1
2
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