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DATABRICKS-CERTIFIED-PROFESSIONAL-DATA-SCIENTIST · Question #1
DATABRICKS-CERTIFIED-PROFESSIONAL-DATA-SCIENTIST Question #1: Real Exam Question with Answer & Explanation
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Question
Suppose you have been given two Random Variables X and Y, whose joint distribution is already known, the marginal distribution of X is simply the probability distribution of X averaging over information about Y. It is the probability distribution of X when the value of Y is not known. So how do you calculate the marginal distribution of X
Options
- AThis is typically calculated by summing the joint probability distribution over Y.
- BThis is typically calculated by integrating the joint probability distribution over Y
- CThis is typically calculated by summing (In case of discrete variable) the joint probability distribution
- DThis is typically calculated by integrating(ln case of continuous variable) the joint probability
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