Probability Tes...

Three of six vertices of a regular hexagon are chosen at random. The probability that the triangle with three vertices is equilateral equals

Ram is visiting a friend. Ram knows that his friend has 2 children and 1 of them is a boy. Assuming that a child is equally likely to be boy or a girl, then the probability that the other child is a girl is

A single letter is selected at random from the word 'PROBABILITY'.The probability that is a vowel, is

If three squares are chosen on a chess board, the chance that they should be in a diagonal line is

If two cards are drawn simultaneously from the same set, then probability that atleast one of them will be the ace of heart is

In a class, there are 10 boys and 8 girls. When 3 students are selected at random, the probability that 2 girls and 1 boy are selected, is

An urn contains 8 red and 5 white balls. Three balls are drawn at random. Then, the probability that balls of both colours are drawn, is

Two decks of playing cards are well shuffled and 26 cards are randomly distributed to a player. Then, the probability that the player gets all distinct card is

A bag contains 3 white and 5 black balls, One ball is drawn at random. Then, the probability that it is white, is

A die is rolled three times. The probability of getting a larger number than the previous number each time is