CBSE  /  Class 10  /  Maths  /  Probability
  • 1. 
    If two different dice are rolled together, the probability of getting an even number on both dice is:

  • \(\frac{1}{36}\)
  • \(\frac{1}{2}\)
  • \(\frac{1}{6}\)
  • \(\frac{1}{4}\)
  • 2. 
    The probability that a number selected at random from the numbers 1, 2, 3, 4, ..., 15 is a multiple of 4 is

  • \(\frac{4}{15}\)
  • \(\frac{2}{15}\)
  • \(\frac{1}{5}\)
  • \(\frac{1}{3}\)
  • 3. 
    An event is very unlikely to happen. Its probability is closest to:

  • 0.0001
  • 0.001
  • 0.01
  • 0.1
  • 4. 
    If the probability of an event is P, the probability of its complementary event will be:

  • P - 1
  • P
  • 1 - p
  • 1 - \(\frac{1}{p}\)
  • 5. 
    In a family of 3 children, the probability of having atleast one boy is:

  • \(\frac{7}{8}\)
  • \(\frac{1}{8}\)
  • \(\frac{5}{8}\)
  • \(\frac{3}{4}\)
  • 6. 
    If P(A) denotes the probability of an event then:

  • P(A) < 0
  • P(A) > 0
  • 0 ≤ P(A) ≤ 1
  • -1 ≤ P(A) ≤ 0
  • 7. 
    A card is selected from a deck of 52 cards. The probability of its being a red face card is:

  • \(\frac{3}{26}\)
  • \(\frac{3}{13}\)
  • \(\frac{2}{13}\)
  • \(\frac{1}{2}\)
  • 8. 
    The probability than a non-leap year selected at random will contain 53 Sundays is:

  • \(\frac{1}{7}\)
  • \(\frac{2}{7}\)
  • \(\frac{3}{7}\)
  • \(\frac{5}{7}\)
  • 9. 
    When a die is thrown, the probability of getting an odd number less them 3 is:

  • \(\frac{1}{6}\)
  • \(\frac{1}{3}\)
  • \(\frac{1}{2}\)
  • 0
  • 10. 
    A card is drawn from a deck of 52 cards. The event E is that card is not an ace of hearts. The number of outcomes favourable to E is:

  • 4
  • 13
  • 48
  • 51
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