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mastery in probability in statistics. proved way to high score.

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Anticipatory Set Let’s define few basic definitions Event The subset of sample space or a single outcome of a trail is called an event. Simple event If a desired outcome is single then it is ca ... lled simple event. Mutually exclusive events The occurring of any one the event prevents or precludes the occurring of all other events, and then those events are called mutually exclusive. Equally likely events If all the events have same chance of occurring then those events are called equally likely events Independent events Events are said to be independent if any one of the event is not affected by remaining events. Teaching The conditional event If there are two events A and B. “the occurring of event A and the event B has already occurred” is called conditional event. It is usually denoted by A/B or A given B. For example  If a card is drawn from 52 shuffle packs of cards then “Occurs a spade card if it is black” is a conditional event  If a die is thrown then there are 6 possible outcomes. “Occur a prime number if it is even number” is a conditional event Conditional probability The probability of any conditional event is called conditional probability. If there are two events A and B then its conditional probability is denoted by P (A/B) or p (A given B). And it is defined as P (B/A) = P (A ⋂ B)/ P (A) Similarly p (B/A) or p (B given A) is defined as P (B/A) = P (A ⋂ B)/ P (A) For example 1. If a card is drawn from 52 shuffle packs of cards then find the probability that occurs a spade card if it is black. [Show More]

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