A student argues that there are 11 possible outcomes 2, 3, 4, 5,6,7,8, 9, 10, 11 and 12. Therefore, each of them has a probability 1/11. Do you agree with this argument? Justify your answer.

Two dice, one blue and one grey are thrown at the same time. Write down all the possible outcomes. : A student argues that 'there are 11 possible outcomes 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12. Therefore, each of them has a probability 1/11 . Do you agree with his argument ? Justify you answer :

If U ={1,2, 3, 4,5, 6,7,8, 9,10} and A= {3, 4, 7, 9}, then A’ equals :

Which of the following arguments are correct ? Give reasons for your answer : If two coins are tossed simultaneously there are three possible outcomes - two heads, two tails or one of each. Therefore, for each of these outcomes, the probability is 1/3 .

Which of the following arguments are correct ? Give reasons for your answer : If a die is thrown, there are two possible outcomes - an odd number or an even number. Therefore, the probability of getting an odd number is 1/2 .

If U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and A = {1, 3, 5, 7, 9}. Find A′.

A die is thrown 1000 times with the frequencies for the outcomes 1, 2, 3, 4, 5 and 6 as given in the following table : Find the probability of getting each outcome.

Let A = {1,2, 3,4, 5, 6, 7, 8, 9, 10} and B = {2, 3,5, 7}. Find A nn B and prove that A nn B=B .

If A= {1,2,3,4,5,6,7} and B= {7,8,9,10}, then A-B equals :

Let A = {{1, 2, 3}, {4, 5}, {6, 7, 8}}. Determine whether the following is true or false . Justify your answer . {{4, 5}} sub A .

Let A = {{1, 2, 3}, {4, 5}, {6, 7, 8}}. Determine whether the following is true or false . Justify your answer . 1 in A .