Probability CBSE Questions & Answers

Both A and B throw a dice. The chance that B throws a number not greater than that thrown by A is

Two dice are thrown. The number of sample points in the sample space when 6 does not appear on either dice is

8 coins are tossed at a time. The probability of getting 6 heads up is

A dice is rolled 6 times. The probability of obtaining 2 and 4 exactly three times each is

A dice has 3 faces each bearing ‘ 2 ‘ and three faces each bearing ‘ 6 ‘. It is rolled once. The probability of showing up ‘a six ‘ is

The total area under the standard normal curve is

Neelam and Nidhi throw with a dice .The chance that both Neelam and Nidhi throw the same number is

A dice is tossed once and even number has come up. The chance that it is either 2 or 4 is

A pair of dice is tossed once and a total of 8 has come up. The chance that both the dice show up same number is

The probability of having atleast one head in 5 throws of a coin is

A fair coin is tossed a fixed number of times. If the probability of getting 4 heads is equal to the probability of getting 7 heads, then the probability of getting 2 heads is

From a pack of 52 cards, the cards are drawn one by one till an ace appears. The chance that an ace does not come up in first 26 cards is

Three of the 6 vertices of a regular hexagon are chosen at random .The probability that the triangle with these vertices is equilateral is

In a certain town , 40\(\% \) persons have brown hair , 25\(\% \) have brown eyes , and 15\(\% \) have both. If a person selected at random has brown hair , the chance that a person selected at random with brown hair is with brown eyes

The probability that a card drawn at random from a pack of 52 cards is a king or a heart is