write introduction notes of probability for class 9
Answers
Answer:
Probability is the measure of the likelihood of an event to occur. Events can’t be predicted with certainty but can be expressed as to how likely it can occur using the idea of probability.
Probability can range between 0 and 1, where 0 probability means the event to be an impossible one and probability of 1 indicates a certain event.
Step-by-step explanation:
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★ Answer ★
• Sum of the probabilities of all the elementary events of an experiment is 1. P(E1) + P(E2) + P(E3) + ... + P(En) = 1
• Probability of Sure Event is 1.
• Probability of an Impossible Event is 0.
• Probability of any event lies between 0 and 1 (including 0 and 1) i.e. 0 ≤ P(E) ≤ 1.
• 52 cards are divided into 4 suits of 13 cards each. The suits are: Spade, Hearts, Diamonds and Clubs.
• Out of 52 cards, 26 are red in colour and 26 are black in colour.
• In each suit, there is an Ace, a King, a Queen, a Jack, 10, 9, 8, 7, 6, 5, 4, 3 and 2.
• King, Queen and Jack are called Face cards.
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CreativeAB
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