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KCET 2022 Math Solved Paper
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© examsnet.com
Question : 52
Total: 60
A pandemic has been spreading all over the world. The probabilities are 0.7 that there will be a lockdown, 0.8 that the pandemic is controlled in one month if there is a lockdown and 0.3 that it is controlled in one month if there is no lockdown. The probability that the pandemic will be controlled in one month is
0.65
1.46
1.65
0.46
Validate
Solution:
👈: Video Solution
P
(
E
1
)
=
probability of there is lockdown
=
0.7
P
(
E
2
)
=
probability of there is lockdown
=
0.3
A
is the event controlled in one month
P
(
A
∕
E
1
)
=
0.8
,
P
(
A
∕
E
2
)
=
0.3
P
(
A
)
=
0.7
(
0.8
)
+
(
0.3
)
(
0.3
)
=
0.56
+
0.09
=
0.65
© examsnet.com
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