SB 7.31 probability

Question

31. Find the probability of rolling a three first and then a four when a die is rolled twice.

 

a) 1/18

b) 1/6

c) 1/12

d) 1/36

 

Answer 1

the chance of rolling a 3 is 1 in 6.

 

since the rolls are independent events, the chance of rolling a 4 on the next roll is also 1 in 6.

 

answer is B