csat-suneung 2021 Q8

csat-suneung · South-Korea · csat__math-humanities 3 marks Probability Definitions Finite Equally-Likely Probability Computation
A die is rolled three times, and the results are $a$, $b$, and $c$ in order. What is the probability that $a \times b \times c = 4$? [3 points]
(1) $\frac { 1 } { 54 }$
(2) $\frac { 1 } { 36 }$
(3) $\frac { 1 } { 27 }$
(4) $\frac { 5 } { 108 }$
(5) $\frac { 1 } { 18 }$
A die is rolled three times, and the results are $a$, $b$, and $c$ in order. What is the probability that $a \times b \times c = 4$? [3 points]\\
(1) $\frac { 1 } { 54 }$\\
(2) $\frac { 1 } { 36 }$\\
(3) $\frac { 1 } { 27 }$\\
(4) $\frac { 5 } { 108 }$\\
(5) $\frac { 1 } { 18 }$