Understanding concepts of probability and permutations from "summary" of RRB ALP Exam PDF-RRB Assistant Loco Pilot Exam-CBT-1-Mathematics Subject eBook by Chandresh Agrawal,Nandini Books
The concept of probability is essential in understanding the likelihood of an event occurring. It is represented as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty. Understanding probability involves analyzing the possible outcomes of an event and determining the chances of each outcome occurring. Permutations refer to the number of ways in which a set of items can be arranged in a specific order. It is calculated using the formula nPr = n! / (n-r)!, where n represents the total number of items and r represents the number of items to be arranged. Permutations are used to calculate the total number of arrangements possible in a given scenario. In probability, permut...
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