Two persons each make a single throw with a pair of dice. The probability that the throws are unequal is given by:

If A and B are two events, the probability that exactly one of them occurs is given by

A die is thrown three times and the sum of the 3 numbers shown is 15. The probability that the first throw was a four, is

Two dice are throw together. The probability that numbers on both the dice are same is ......

Each coefficient in the equation ax^(2)+bx+c=0 is determined by throwing an ordinary die. Q. The probability that roots of quadratics are real and district, is

Three six faced dice are tossed together, then the probability that exactly two of the three numbers are equal is :

If the lengths of the sides of a triangle are decided by the three thrown of a single fair die,then the probability that the triangle is of maximum area given that it is an isosceles triangle, is

Given that the two numbers appearing on throwing two dice are different. Find the probability of the event the sum of numbers on the dice is 4".

Given that the two numbers appearing on throwing two dice are different. Find the probability of the event 'the sum of numbers on the dice is 4'.

Each coefficient in the equation ax^(2)+bx+c=0 is determined by throwing an ordinary die. The probability that roots of quadratic are imaginary, is

Seven persons are to be seated in a row. The probability that two particular persons sit next to each other is