Category: Probability

A bag contains five white and four red balls. Two balls are picked at random from the bag. What is the probability that they both are different color?

Hamad Probability 02/06/2021

0

A. 4/9
B. 5/9
C. 7/9
D. 8/9
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A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?

Hamad Probability 23/05/2021

0

A. 1/455
B. 2/455
C. 1/91
D. 4/455
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A bag contains 7 green and 8 white balls. If two balls are drawn simultaneously, the probability that both are of the same colour is -.

Hamad Probability 11/04/2021

0

A. 8/15
B. 2/5
C. 3/5
D. 7/15
(more…)

Three 6 faced dice are thrown together. The probability that exactly two dice show the same number on them is -.

Hamad Probability 10/04/2021

0

A. 5/9
B. 5/12
C. 1/36
D. 7/12
(more…)

The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winning a prize on at least one ticket is__________?

Hamad Probability 06/04/2021

0

A. 0.4869
B. 0.5904
C. 0.6234
D. 0.5834
(more…)

If a number is chosen at random from the set {1, 2, 3, …., 100}, then the probability that the chosen number is a perfect cube is___________?

Hamad Probability 21/03/2021

0

A. 1/25
B. 1/2
C. 4/13
D. 1/10
(more…)

In a drawer there are 4 white socks, 3 blue socks and 5 grey socks. Two socks are picked randomly. What is the possibility that both the socks are of same color?

Hamad Probability 15/03/2021

0

A. 4/11
B. 1
C. 2/33
D. 19/66

From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is_________?

Hamad Probability 13/03/2021

0

A. 1/26
B. 3/52
C. 15/26
D. 11/26
(more…)

If six persons sit in a row, then the probability that three particular persons are always together is____________?

Hamad Probability 09/03/2021

0

A. 1/20
B. 3/10
C. 1/5
D. 4/5
(more…)

A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is___________?

Hamad Probability 19/02/2021

0

A. 1/13
B. 2/13
C. 1/26
D. 1/52