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The probability of an event that is certain to happen is
  • a)
    2
  • b)
    1
  • c)
    0
  • d)
    -1
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The probability of an event that is certain to happen isa)2b)1c)0d)-1C...
The probability of an event is a number describing the chance that the event will happen. An event that is certain to happen has a probability of 1. An event that cannot possibly happen has a probability of zero. If there is a chance that an event will happen, then its probability is between zero and 1.
Examples of Events:
  • tossing a coin and it landing on heads
  • tossing a coin and it landing on tails
  • rolling a '3' on a die
  • rolling a number > 4 on a die
  • it rains two days in a row
  • drawing a card from the suit of clubs
  • guessing a certain number between 000 and 999 (lottery)
Free Test
Community Answer
The probability of an event that is certain to happen isa)2b)1c)0d)-1C...
Probability of a sure or certain event is 1
>>Probability of an impossible event is 0
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The probability of an event that is certain to happen isa)2b)1c)0d)-1Correct answer is option 'B'. Can you explain this answer?
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