Mr. X and Y are two field staff workers of Wapda. The probability to handle any break down
satisfactory by Mr. X and Y respectively are 80% and 70%. What is the probability the next
break down will be satisfactory handle by (i) Both of them (ii) either of them
Answers
Mr. X and Y are two field staff workers of Wapda. The probability to handle any break down
satisfactory by Mr. X and Y respectively are 80% and 70%. What is the probability the next
break down will be satisfactory handle by (i) Both of them (ii) either of them.
Task-3 (
Given : Mr. X and Y are two field staff workers of Wapda.
The probability to handle any break down satisfactory by Mr. X and Y respectively are 80% and 70%.
To Find : the probability the next break down will be satisfactory handle by
(i) Both of them (ii) either of them
Solution:
Satisfactory handled by X = 80 % = 0.8
Not Satisfactory handled by X = 1 - 0.8 = 0.2
Satisfactory handled by y = 70 % = 0.7
Not Satisfactory handled by Y = 1 - 0.7 = 0.3
satisfactory handle by (i) Both of them
= (0.8)(0.7)
= 0.56
= 56 %
satisfactory handle by either of them
= 1 - Not Satisfactory handled by Both of them
= 1 - (0.3)(0.2)
= 1 - 0.06
= 0.94
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