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BITSAT 2023 Shift 2 Solved Paper
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© examsnet.com
Question : 115
Total: 130
A coin is tossed twice. Then, the probability that atleast one tail occurs is
1
4
1
2
1
3
3
4
Validate
Solution:
👈: Video Solution
The sample space is
S
=
{
HH
,
HT
,
TH
,
TT
}
Let
E
be the event of getting atleast one tail
∴
E
=
{
HT
,
TH
,
TT
}
∴
Required probability
p
=
Number of favourable outcomes
Total number of outcomes
=
n
(
E
)
n
(
S
)
=
3
4
© examsnet.com
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