Over 400 lecture Slides on Undergraduate Engineering Probability presents a one semester course material for engineering students. The material is presented here as a collection of slides broken up into units, with hyperlinks to author's videos, making it suitable for instructors to present during lectures. Topics covered include axioms of probability, random variables, functions of one and two random variables, central tendencies (univariate and bivariate) such as mean, variance, covariance, correlation coefficient, characteristic functions, conditional densities and an introduction to estimation theory along with portfolio optimization in finance. Each of the topics are accompanied with extensive solved examples to aid the students in solidifying their understanding of the covered material.