PROBABILITY, RESEARCH, SAMPLING, TESTING OF HYPOTHESIS
INTRODUCTION
Probability is defined in many ways. We will restrict ourselves to two definitions - classical definition and axiomatic definition. Let us learn the definitions of some terms before defining probability.
Random Experiment: An experiment or trial whose outcome is not perfectly predictable, but for which the set of all possible outcomes in repeated trials is known.
Random Variable: A random variable is an assignment of numbers to the possible outcome of a random experiment. For example, consider tossing two coins. The heads showing when the coins land is a random variable. It assigns the number 0 to the outcome (T, T), the number 1 to the outcome (T, H), the number 2 to the outcome ...
Get NTA UGC/NET/SET/JRF Commerce Paper 2 - 2024, | 2023 Fully solved paper | 4th Edition, Includes 2023 Solved Papers | now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
