A branch of mathematics that deals with the happening of a random event is termed probability. It is used in Maths to predict how likely events are to happen. Show The probability of any event can only be between 0 and 1 and it can also be written in the form of a percentage.
If we are not sure about the outcome of an event, we take help of the probabilities of certain outcomes—how likely they occur. For a proper understanding of probability we take an example as tossing a coin: There will be two possible outcomes—heads or tails. The probability of getting heads is half. You might already know that the probability is half/half or 50% as the event is an equally likely event and is complementary so the possibility of getting heads or tails is 50%. Formula of Probability
Some Terms of Probability Theory
Some Probability FormulasAddition rule: Union of two events, say A and B, then
Complementary rule: If there are two possible events of an experiment so the probability of one event will be the Complement of another event. For example – if A and B are two possible events, then
Conditional rule: When the probability of an event is given and the second is required for which first is given, then
Multiplication rule: Intersection of two other events i.e. events A and B need to occur simultaneously. Then
Find the probability of getting a number less than 5 in a single dice throw.Solution :
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In daily life, usually the word ‘probably’ is used when people are not sure about certain things. For example, Probably, India may win the match today. There may be a chance that India may win or lose or maybe the match is a tie. This type of statement leads to the uncertainty of the event. The word Probability is formed from the word word ‘probably’, which means that when people are not sure about an event is happens or not. People have a proper method to find out the probability which will be discussed in this article. Terms used in Probability
Probability
Solution:
Similar QuestionsQuestion 1: What is the probability of rolling a number greater than 4 on a dice? Solution:
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