Probability
Important Questions
Q) Three coins are tossed simultaneously. What is the probability of getting (i) at least one head? (ii) exactly two tails? (iii) at most one…
Q) A box contains 90 discs which are numbered 1 to 90. If one disc is drawn at random from the box, find the probability…
Q) In a two-dice game, a player throws two dice simultaneously. A player scores the sum of the two dice thrown and gradually reaches a higher…
Q) How many positive three digit integers have the hundredths digit 8 and unit’s digit 5? Find the probability of selecting one such number out…
Q) Two dice are rolled together bearing numbers 4, 6, 7, 9, 11, 12. Find the probability that the product of numbers obtained is an…
Q) One card is drawn at random from a well shuffled deck of 52 cards. Find the probability that the card drawn (i) is queen…
Q) A departmental store sends bills to charge its customers once a month. Past experience shows that 70% of its customers pay their first month bill…
Q) In a survey on holidays, 120 people were asked to state which type of transport they used on their last holiday. The following pie…
Q) In a pack of 52 playing cards one card is lost. From the remaining cards, a card is drawn at random. Find the probability…
Q) From a group of 3 boys and 2 girls we select two children. What is the set representing the event:i. one girl is selectedii. at…
Q) A middle school decided to run the following spinner game as a fund-raiser on Christmas Carnival. Making Purple: Spin each spinner once. Blue and…
Q) If a fair coin is tossed twice, find the probability of getting ‘at most one head’. Ans: When we toss 2 fair coins, here are…
Q. Computer-based learning (CBL) refers to any teaching methodology that makes use of computers for information transmission. At an elementary school level, computer applications can…
Q) A bag contains 4 red, 3 blue and 2 yellow balls. One ball is drawn at random from the bag. Find the probability that…