4. Probabilistic Models

Bayesian Inference — Quiz

Test your understanding of bayesian inference with 5 practice questions.

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Practice Questions

Question 1

Which of the following scenarios best illustrates the application of Bayesian inference for parameter estimation?

Question 2

Given Bayes' rule, $P(\theta|D) = \frac{P(D|\theta)P(\theta)}{P(D)}$, what does the term $P(D)$ represent and why is it often computationally challenging to calculate?

Question 3

In Bayesian inference, when is a prior distribution considered 'informative'?

Question 4

You are trying to estimate the average height of students in a university. You have a prior belief that the average height is around 170 cm with a standard deviation of 5 cm. After collecting data from 100 students, you find the sample mean height is 172 cm. If you use a Normal prior and a Normal likelihood (with known variance), what type of distribution will the posterior distribution for the mean height be?

Question 5

In the context of Bayesian decision making under uncertainty, what is the 'loss function' and why is it crucial?