The venn diagram below shows the number of students offering Music and History in a class. What is the probability that he offers Music only

Teams P and Q are involved in a game of football. What is the probability that the game ends in a draw?

If U ={x: x is an integer and 1≤ x ≤ 20}

E₁ = {x: x is a multiple of 3}

E₂ = {x: x is a multiple of 4}

and an integer is picked at random from U,  find the probability that it is not in E₂

X and Y are two events. The probability of X or Y is 0.7 and the probability of X is 0.4. If X and Y are independent. Find the probability of Y