Question Text
Question 3 :
If two coins are tossed then find the probability of the event that at least one tail turns up is:
Question 4 :
While doing any experiment, there will be a possible outcome which is called<br/>
Question 5 :
Two unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
Question 6 :
In throwing of two dice, the number of exhaustive events that $'5'$ will never appear on any one of the dice is
Question 7 :
An experiment can result in only $3$ mutually exclusive events $A, B$ and $C$. If $P(A) = 2P(B) = 3P(C)$, then $P(A) =$<br/>
Question 8 :
Two die are thrown. Find the probability of the event that the product of numbers on their upper faces is $12$:
Question 9 :
Two fair dice are thrown. What is the probability that the two scores do not add to $5$?<br/>
Question 10 :
If a ball is drawn from a bag containing 20 balls of different colours, then probability of a white ball is _____.
Question 14 :
Let $A$ and $B$ be two events such that $P(\overline { A\cup B } )=\cfrac { 1 }{ 6 } ,P(A\cap B)=\cfrac { 1 }{ 4 } $ and $P(\overline { A } )=\cfrac { 1 }{ 4 } $, where $\overline { A } $ stands for complement of event $A$. Then, the events $A$ and $B$ are
Question 15 :
Let $A$ and $B$ be two events such that $P (A \cup B) = P(A) + P(B)- P (A) P(B)$. If $0 < P(A) < 1$ and $0 < P (B) < 1$, then $P(A \cup B)'$ is equal to