Mathematics
Grade-4-
Easy

Question

If the winning probability is 0.3, then the probability of losing a game is______.

  1. 0.3
  2. 0.4
  3. 0.7
  4. 0.8

hintHint:

Probability of an event = Number of favourable outcome / Total number of outcomes

The correct answer is: 0.7


    Here, it is given that the probability of winning a game is 0.3.
    We have to find the probability of losing the game.
    We know, P(E) + P(not E) = 1
    So, P(winning a game) +P(losing a game) = 1
    Or, P(losing a game) = 1 - P(winning a game)
    Or, P(losing a game) = 1 - 0.3
    = 0.7
    Hence, the correct option is (c).

    0 ≤ P(E) ≤ 1 , sum of probabilities of all events = 1

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