InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
The chances to fail in Physis are 20% and the chances to fail in Mathematics are 10%. What are the chances to fail in atleast one subject ?A. 0.28B. 0.38C. 0.72D. 0.82 |
|
Answer» Correct Answer - A Let P `(A)=(20)/(100)=(1)/(5),P(B)=(10)/(100)=(1)/(10)` Since, event are independent and we have to find `P(AuuB)=P(A)+P(B)-P(A)*P(B)` `=(1)/(5)+(1)/(10)-(1)/(5)*(1)/(10)` `=(3)/(10)-(1)/(50)=(14)/(50)=(14)/(50)xx100=28%` |
|