| 82742 | If an integer x is to be chosen at random from the… | Medium | |
| 82745 | A coin is tossed 5 times, Probability of getting head exactly 3… | Medium | |
| 82777 | A password for a computer uses eight digits from 0 to 9… | Medium | |
| 82782 | Baseball's World Series matches 2 teams against each other in a best-of-seven… | Medium | |
| 82790 | Three unbased coins are tossed | Medium | |
| 82809 | A fair coin with sides marked heads and tails is to be… | Medium | |
| 82841 | Private Benjamin is a member of a squad of 10 soldiers, which… | Medium | |
| 82895 | Observe the dots on a dice (one to six dots) in the… | Medium | |
| 82901 | A box contains 100 balls, numbered from 1 to 100 | Medium | |
| 82945 | Three boys are ages 4, 6 and 7 respectively | Medium | |
| 83130 | A problem is given to three students whose chances of solving it… | Medium | |
| 83139 | 2n boys are randomly divided into two sub-groups containing n boys each | Medium | |
| 83148 | If the probability Q of rain on any given day in city… | Medium | |
| 83158 | Three faces of a fair die are Yellow, two faces red and… | Medium | |
| 83219 | In a box, there are 10 blue, 12 white and 10 yellow… | Medium | |
| 83289 | If you throw two dice at a same time | Medium | |
| 83293 | What is the probability that two siblings, ages 6 and 8, will… | Medium | |
| 83377 | If a fair 6-sided die is rolled three times, what is the… | Medium | |
| 83383 | A coin is tossed until sequence HTH appears (H denotes the fall… | Medium | |
| 83523 | Vanya prepared 4 different letters to 4 different addresses | Medium | |
| 83527 | 5 persons A,B,C,D and E occupy seats in a row at random | Medium | |
| 83550 | John can hit a target 3times in 6shots, Karan can hit the… | Medium | |
| 83562 | From a group of 3 CATS and 3 DOGS, 4 animals are… | Medium | |
| 83606 | One hundred multiples of seven are chosen at random, and 200 multiples… | Medium | |
| 83628 | Three faces of a fair die are Yellow, three faces red and… | Medium | |
| 83651 | The probability of pulling a black ball out of a glass jar… | Medium | |
| 83660 | x, y, and z are all unique numbers | Medium | |
| 83739 | There are 7 Physics and 1 Chemistry book in shelf A and… | Medium | |
| 83751 | Alicia lives in a town whose streets are on a grid system… | Medium | |
| 83887 | A coin is tossed twice if the coin shows head it is… | Medium | |
| 83910 | What is the probability, to 3 decimal places, that at least two… | Medium | |
| 83913 | What is the probability for a family with four children to have… | Medium | |
| 83930 | If five numbers are randomly selected without replacement from set {1, 2… | Medium | |
| 83946 | Jason flips a coin three times | Medium | |
| 84001 | If 2 cards are selected at random from the deck of 52… | Medium | |
| 84087 | Four faces of a fair die are Yellow, three faces red and… | Medium | |
| 84099 | A problem is given to 3 students A, B and C whose… | Medium | |
| 84168 | In a simultaneous throw of 2 dice, what is the probability of… | Medium | |
| 84189 | A die is rolled twice | Medium | |
| 84208 | A bag contains 5 white marbles and 5 black marbles | Medium | |
| 84282 | Find the probability if a two digit number multiplied by 3 but… | Medium | |
| 84314 | From a pack of cards, two cards are drawn one after the… | Medium | |
| 84336 | If x is to be chosen at random from the set {1… | Medium | |
| 84349 | If a is an integer from 1 to 96, what is the… | Medium | |
| 84352 | You keep tossing a fair coin for twenty times | Medium | |
| 84375 | A box contains 15 items | Medium | |
| 84407 | If you are rolling 2 dice, what is the probability of rolling… | Medium | |
| 84497 | A and B play a game where each is asked to select… | Medium | |
| 84513 | A 6 faced die is thrown | Medium | |
| 84569 | Three numbers are randomly selected, with replacement, from the set of integers… | Medium | |