The probability of not completing a task is 'a/7' the probability of completing that task will be
Answers
Answered by
2
Answer:
7-a/7
Step-by-step explanation:
(PE) not completing = a/7
(PE) completing = 1- a/7
= 7-a/ 7
Answered by
0
Answer:
Correct option is C)
Let A,B,C respectively denote the events that the problem is solved by A,B,C respectively.
P(A)=
2
1
,P=
(A)
ˉ
=
2
1
,P(B)=
3
1
,P
(B)
ˉ
=
3
2
P(C)=
4
1
,P
(C)
ˉ
=
4
3
Problem will be solved if even one of them solve it So, the first we calculate probability that is not solved P
(A)
ˉ
P
(B)
ˉ
P
(C)
ˉ
=
2
1
×
3
2
×
4
3
=
4
1
,
The required probability =1−
4
1
=
4
3
.
Step-by-step explanation:
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