(6) If three dice are rolled at the same time, what is the probability that all three will land on a different number?
- (a) \(\frac{1}{6}\)
- (b) \(\frac{5}{9}\)
- (c) \(\frac{1}{3}\)
- (d) \(\frac{1}{18}\)
(7) What is the probability of getting a sum of 7 when two dice are rolled?
- (a) \(\frac{5}{36}\)
- (b) \(\frac{1}{6}\)
- (c) \(\frac{1}{12}\)
- (d) \(\frac{1}{8}\)
(8) An urn contains 10 balls: 4 red and 6 blue. If two balls are drawn one after the other with replacement, what is the probability that both are blue?
- (a) \(\frac{1}{4}\)
- (b) \(\frac{9}{25}\)
- (c) \(\frac{2}{5}\)
- (d) \(\frac{3}{5}\)
(9) What is the probability that a leap year selected at random will have 53 Sundays?
- (a) \(\frac{2}{7}\)
- (b) \(\frac{2}{7}\)
- (c) \(\frac{1}{7}\)
- (d) \(\frac{3}{7}\)
(10) What is the probability of selecting a prime number from the set of numbers from 1 to 20?
- (a) \(\frac{1}{4}\)
- (b) \(\frac{8}{20}\)
- (c) \(\frac{1}{2}\)
- (d) \(\frac{3}{10}\)