Probability Tes...

Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is

A committee of five is to be chosen from a group of 9 people. The probability that a certain married couple will either serve together or not at all is

A letter is taken out at random from 'ASSISTANT' and another is taken out from 'STATISTICS'. The probability that they are the same letters, is

When three dice are thrown the probability of getting 4 or 5 on each of the dice simultaneously is

A coin is tossed three times. The probability of getting a head once and a tail twice is

Four persons are chosen at random from a group of 3 men, 2 women and 4 children. The chance that exactly 2 of them are children, is

A bag contains 5 blue balls and unknown number of red balls, two balls are drawn at random. The probability of both of them are blue is 5/14, then the number of red balls are

Probability of throwing 16 in one throw with three dice is

Of a total of 600 bolts, 20% are too large and 10% are too small. The remaining are considered to be suitable. If a bolt is selected at random, the probability that it will be suitable is

A fair die is tossed eight times. The probability that a third six is observed on the eight throw, is