`D_(1), D_(2)` are two cubical dice, with faces of `D_(1)` marked `1,2,2,3,3,3` and faces of `D_(2)` marked `1,1,2,2,3,3`. One of the 2 dice is selected at random and tosses 3 times. If the sum of the numbers obtained is equal to 6 then the probability that the selected die is `D_(1)` is

Six faces of a die are marked with numbers 1,-1,0,-2,2,3 and the die is thrown thrice.The probability that the sum of the numbers thrown is six,is

Two dice are thrown. If it is known that the sum of the numbers on the dice was less than6, the probability of getting a sum 3 is 1/(18) b. 5/(18) c. 1/5 d. 2/5

There are two die A and B both having six faces. Die A has three faces marked with 1, two faces marked with 2, and one face marked with 3. Die B has one face marked with 1, two faces marked with 2, and three faces marked with 3. Both dices are thrown randomly once. If E be the event of getting sum of the numbers appearing on top faces equal to x and let P(E) be the probability of event E, then P(E) is minimum when x equals to

There are two die A and B both having six faces. Die A has three faces marked with 1, two faces marked with 2, and one face marked with 1, two faces marked with 2, and one face marked with 3. Die B has one face marked with 1, two faces marked with 2, and three faces marked with 3. Both dices are thrown randomly once. If E be the event of getting sum of the numbers appearing on top faces equal to x and let P(E) be the probability of event E, then When x = 4, then P(E) is equal to

A number is selected at random from the numbers 1 to 30. The probability that it is a prime number is (2)/(3) (b) (1)/(6)( c) (1)/(3)(d)(11)/(30)

There are two die A and B both having six faces. Die A has three faces marked with 1 , two faces marked with 2 , and one face marked with 3 . Die B has one face marked with 1 , two faces marked with 2 , and three faces marked with 3 . Both dices are thrown randomly once. If E be the event of getting sum of the numbers appearing on top faces equal to x and let P(E) be the probability of event E , then P(E) is maximum when x equal to

Special dice are prepared having faces -3,-2,-1,0,1,2. Three of those are taken and rolled. The probability that sum on the faces is -2 is

Special dice are prepared having faces -3,-2,-1,0,1,2. Three of those are taken and rolled. The probability that sum on the faces is zero is

3 six faced dice are thrown. One die bears numbers 0 to 5, second bears numbers 1 to 6 and third has numbers 2 to 7. The probability that sum of numbers shown is six is

A dice marked with digit {1,2,2,3,3,3}, thrown three xx,then the probability of getting sum of number on face is six,is equal to :(7)/(216)