Probability

9000154807

Level:

The Robin's band has

10

men and

5

women. From this group they select randomly two fellows to negotiate with the Sheriff of Nottingham. Find the probability that there will be one man and one woman in the selected pair. Round your answer to three decimal places.

0.476

0.952

0.325

0.675

9000154808

Level:

Little John plays a dice game against Robin Hood. To win, he needs to get the sum of

8

by rolling two dice. What is the probability that he wins over Robin right on the first roll? Round your result to three decimal places.

0.139

0.194

0.806

0.778

9000138305

Level:

Two different dices (a white dice and a black dice) are rolled. We get the sum of the numbers on both dices

6

. Find the probability that there is an even number on the black dice.

\frac{2}{5} = 0.4

\frac{5}{36} ≐ 0.1389

\frac{5}{18} ≐ 0.2778

\frac{13}{36} ≐ 0.3611

9000138306

Level:

Two dice are rolled. Find the probability that we get the number

3

at least once.

\frac{11}{36} ≐ 0.3056

\frac{3}{36} ≐ 0.0833

\frac{10}{36} ≐ 0.2778

\frac{12}{36} ≐ 0.3333

9000138307

Level:

Two dice are rolled. What is the probability of getting

10

as the product of the two dice.

\frac{2}{36} ≐ 0.0556

\frac{10}{36} ≐ 0.2778

\frac{1}{36} ≐ 0.0278

\frac{5}{36} ≐ 0.1389

9000138308

Level:

Two different dices (a white dice and a black dice) are rolled. The sum of the numbers on both dices is

8

. Find the probability that there is

4

on the black dice.

\frac{1}{5} = 0.2

\frac{1}{4} = 0.25

\frac{6}{36} ≐ 0.1667

\frac{11}{36} ≐ 0.3056

9000138309

Level:

Two dices are rolled. Find the probability that we get either the same number on both dices or the sum of the numbers on both dices is

6

\frac{10}{36} ≐ 0.2778

\frac{11}{36} ≐ 0.3056

\frac{6}{36} ≐ 0.1667

\frac{5}{36} ≐ 0.1389

9000138310

Level:

Two dice are rolled. The sum of the numbers on both dice is

9

. Find the probability that there is the number

4

on one of the dice.

\frac{2}{4} = 0.5

\frac{12}{36} ≐ 0.3333

\frac{10}{36} ≐ 0.2778

\frac{8}{12} ≐ 0.6667

9000138303

Level:

Two dice are rolled. Find the probability that we get the number

6

on just one of the dice and the sum of the numbers on both dice is

8

\frac{2}{36} ≐ 0.0556

\frac{5}{36} ≐ 0.1389

\frac{11}{36} ≐ 0.3056

\frac{14}{36} ≐ 0.3889

9000138304

Level:

Two different dice (a white die and a black die) are rolled. Find the probability that we get the number

3

on the black die and a number different from

3

on the white die.

\frac{5}{36} ≐ 0.1389

\frac{3}{36} ≐ 0.0833

\frac{6}{36} ≐ 0.1667

\frac{1}{36} ≐ 0.0278

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