1) If you roll two normal dice, which of the following choices represents the sum with the highest probability of occurrence?

a) 12 b) 7 c) 13 d) 5 e) 6

2) If you roll a coin three consecutive times, what is the probability of obtaining three tails?

a) 1/2 b) 1/4 c) 1/8 d) 1/32 e) 1/5

3) In an urn you have tokens that are consecutively numbered from 1 to 20. What is the probability of obtaining a token that is a multiple of 3?

a) 0.1 b) 0.3 c) 0.7 d) 0.8 e) 0.5

4) Two dice are simultaneously rolled. How many elements does the sample space have?

a) 6 b) 12 c) 24 d) 36 e) 216

5) What is the probability that while drawing two cards from a deck, you get hearts?

a) 1/13 b) 1/2 c) 1/17 d) 3/28 e) 4/27