Mathematics for IGCSE & O level - Probability (Section 1 - No. 25)
If you roll a six-sided die twice, what is the probability of rolling a 3 on the first roll and a 4 on the second roll?
1/36
1/12
1/6
1/3
คำอธิบาย
P(3) = 1/6, P(4)= 1/6, so P(3 and 4)= 1/6 * 1/6= 1/36