3.49: Marginal Distribution | Probability & Statistics for Engineers & Scientists by Walpole 9th Ed

This video describes the conceptual overview related to the marginal distribution in the form of problem 3.49 to calculate different values for continuous probabilities. In this problem, the use of joint probability distribution and marginal distribution has been used to find the conditional probability
3.49 Let X denote the number of times a certain numerical control machine will malfunction: 1, 2, or 3 times on any given day. Let Y denote the number of times a technician is called on an emergency call. Their joint probability distribution is given as
(a) Evaluate the marginal distribution of X.
(b) Evaluate the marginal distribution of Y.
(c) Find P(Y = 3 | X = 2).
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