JAMB - Mathematics (1984 - No. 32)
Two fair dice are rolled. What is the probability that both show up the same number of points.
\(\frac{1}{36}\)
\(\frac{7}{36}\)
\(\frac{1}{2}\)
\(\frac{1}{3}\)
\(\frac{1}{6}\)
Vysvětlení
A dice has 6 faces, 2 dice has 6 x 6 = 36 combined face
Prob. of both showing the same number of points
= \(\frac{6}{36}\)
= \(\frac{1}{6}\)
Prob. of both showing the same number of points
= \(\frac{6}{36}\)
= \(\frac{1}{6}\)