These lecture notes on “Probability distributions” were prepared and delivered to my undergraduate students studying Animal Genetics & Breeding course. This course was offered in the second professional year of Bachelor of Veterinary Science & Animal Husbandry degree at College of Veterinary & Animal Sciences, S.V.P.U.A.T, Meerut, Uttar Pradesh, India. This is in continuation to my lecture notes on “Probability”. I have tried to explain how probability and probability distribution are important pivots of Inferential statistics. New concepts about random variables, its associated probabilities, statistics of random variables, discrete and continuous probability distribution along with standard normal variate have been introduced and explained. Use of diagrams, explanatory boxes, examples and tables have deliberately been used throughout the notes to create an interest among the students. Once through with these lecture notes readers will be able to understand the basics and application of random variable and probability distributions. I had tried my level best to simplify the concept in easy to understand language. Further constructive suggestions to improve this lecture notes are always welcome from readers on my email and WhatsApp.
Probability distributions
 
Random variable
 
Binomial Distribution
 
Poisson Distribution
 
Normal Distribution
 
Standard Normal Variate
 
z score
 

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