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प्रश्न
The probability of an event which is certain to happen is ______.
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उत्तर
The probability of an event which is certain to happen is 1.
Explanation:
In other words, probability of a sure event is 1.
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संबंधित प्रश्न
A die is thrown. Find the probability of getting:
a multiple of 2 or 3
In a simultaneous throw of a pair of dice, find the probability of getting:
a sum greater than 9
In a simultaneous throw of a pair of dice, find the probability of getting:
a number other than 5 on any dice.
Three coins are tossed together. Find the probability of getting:
at least two heads
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
spade or an ace
A bag contains 4 red, 5 black and 6 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is:
white
A bag contains 5 red marbles, 8 white marbles, 4 green marbles. What is the probability that if one marble is taken out of the bag at random, it will be
white
A glass jar contains 6 red, 5 green, 4 blue and 5 yellow marbles of same size. Hari takes out a marble from the jar at random. What is the probability that the chosen marble is of red colour?

In the previous question, what is the probability of picking up an ace from set (d)?
When a die is thrown, the probability of getting a number less than 7 is ______.
