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Question
Mathematics
The probability that a man can hit a target is (3/4), he tries 5 times. The probability that he will hit the target at least three times is
Q. The probability that a man can hit a target is
4
3
,
he tries
5
times. The probability that he will hit the target at least three times is
395
153
NTA Abhyas
NTA Abhyas 2022
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A
364
291
B
464
371
C
502
471
D
512
459
Solution:
p
=
4
3
,
q
=
4
1
,
n
=
5
Probability
=
5
C
3
(
4
3
)
3
(
4
1
)
2
+
5
C
4
(
4
3
)
4
(
4
1
)
+
5
C
5
(
4
3
)
5
=
512
459