For the experiment described, write the indicated event in set notation.?

Question

A die is tossed twice with the tosses recorded as an ordered pair. Represent the following event as a subset of the sample space: The second toss shows a two.

a. {(1, 2), (3, 2), (5, 2)}

b. {(1, 2), (2, 2), (4, 2), (5, 2), (6, 2)}

c. {(3, 2)}

d. {(1, 2), (2, 2), (3, 2), (4, 2), (5, 2), (6, 2)}

Answer 1

Answer C is what you want to represent just the two rolls of the die, with a 2 as the second roll.

D is all possible rolls.

Answer 2

So you find how many possibilities for a second toss to be a 2?

(1,1) (1,2) (1,3) ........

(2,1) (2,2) (2,3) (2,4).....

(3,1) (3,2) (3,3) (3,4).......

and so on...

so answer d would give all of the possible rolls that can have a 2.