Probability FiniteQuest

Probability

1 / 10

A bag contains 6 white balls and 4 black balls. 2 balls are drawn at random one after the other without replacement. Find the probability that both balls are black.

4/5

2/15

4/15

2/5

2 / 10

A problem in statistics is given to five students A, B, C, D and E. Their chances of solving it are 1/2, 1/3, 1/4, 1/5 and 1/6. What is the probability that the problem will be solved?

1/6

719/720

1/720

5/6

3 / 10

A person is known to hit the target in 1 out of 2 shots, whereas another person is known to hit the target in 4 out of 5 shots. Find the probability of the target being hit at all when both try.

2/5

1/10

9/10

3/5

4 / 10

A bag contains 6 white and 3 red balls. Four balls are drawn at random What is the probability that 2 of them are red and 2 of them are white?

5/14

5/84

3/14

9/14

5 / 10

What is the chance that a leap year selected at random will contain 53 Sundays?

53/366

2/7

2/366

7/53

6 / 10

Three cards are drawn at random from a well-shuffled pack of 52 cards. What is the chance of drawing 3 queens?

3/52

1/13

1/22100

1/5525

7 / 10

From 20 tickets marked with the first 20 numerals, one is drawn at random. Find the chance that it is the multiple of 3 or factors of 18?

8/20

9/20

13/20

1/10

8 / 10

Two dice are thrown. What is the probability that the sum of the number appearing on the dice is 10?

1/36

1/12

3/12

2/36

9 / 10

An ordinary die is thrown. What is the probability that the number on the die is less than 4?

1/2

2/3

5/6

1/3

10 / 10

A bag contains 4 red, 6 white and 8 blue balls. What is the probability that two balls drawn are red and white?

6/5

6/51

4/3

4/51

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