Probability questions
692 published questions with worked solutions.
- Suppose that 5 % of men and 0.25 % of women have grey hair. A grey haired person is selected at random. Then, the probability of...
- The members of the consulting firm hire cars from three rental agencies, 60 % from agency X, 30 % from agency Y and 10 % from...
- The odds in favor of an event are 2 : 7. Find the probability of occurrence of this event.
- In solving any problem, odds against A are 4 to 3 and odds in favour of B in solving the same is 7 to 5. Then, probability that...
- A fair die is thrown. What is the odds in favour of getting a number which is a perfect square in uppermost face of die?
- Two dice are thrown simultaneously. The probability of obtaining a total score of 5 is
- If two dice are thrown simultaneously, then the probability that the sum of the numbers which come upon the dice to be more than...
- A single letter is selected at random from the word 'PROBABILITY'. The probability that it 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 hearts is
- Probability of getting product as a perfect square when 2 dice are thrown together, is
- The probability that a leap year will have only 52 Sunday, is
- A bag has four pair of balls of four distinct colors. If four balls are picked at random (without replacement), the probability...
- A complete cycle of a traffic light takes 60 s. During each cycle the light is green for 25 s, yellow for 5 s and red for 30 s....
- A bag contains 6 white and 4 black balls. Two balls are drawn at random. The probability that they are of the same colors, is
- A candidate takes three tests in succession and the probability of passing the first test is p. The probability of passing each...
- A bag contains 3 black, 3 white and 2 red balls. One by one, three balls are drawn without replacement. The probability that the...
- A ship is fitted with three engines E_1, E_2 and E_3. The engines function independently of each other with respective...
- A signal which can be green or red with probability 4 5 and 1 5 respectively, is received by station A and then transmitted to...
- One ticket is selected at random from 50 tickets numbered 00, 01, 02, , 49. Then, the probability that the sum of the digits on...
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration