Bayes’ rule Study guides, Study notes & Summaries

Probability in Bayesian terms (as opposed to classical) correct answers How confident you are that a hypothesis is true Time in Bayesian vs. Classical correct answers Generally you cannot update classical models as time goes on, you can with Bayesian Product Rule correct answers P(A, B) = P(A) * P(B|A) *** Only if A and B are independent Sum Rule correct answers P(A) = P(B) * P(A|B) + P(nB)*P(A|nB) (nB is not B) OR P(A) = Σ P(Bi) * P(A|Bi) Bayes' Rule correct answers P(...

Bayes' rule correct answers Given some observed data x, the posterior probability that the parameter Θ has the value θ is p(θ|x) = p(x|θ)p(θ)/p(x), where p(x|θ) is the likelihood, p(θ) is the prior probability of the value θ, and p(x) is the marginal probability of the value x. conditional probability correct answers The probability that the value of one random variable Θ has the value θ given that the value of another random variable X has the value x; written as p(Θ=θ|X=x) or p...

Z-Score - ACCURATE ANSWERS Data points only. Measurement of a scores relationship to the mean. A statistical measure that indicates the number of standard deviations a data point is from its mean. Variance - ACCURATE ANSWERS How far a set of numbers are spread. Used for Data set. Hint Words = Risk, spread. Multiplication Rule - ACCURATE ANSWERS A method for finding the probability that both of two events occur. When the probabilities of multiple events are multiplied together to determine ...

P value correct answers the true probability that the test statistic would be as far from expected as it is IF the null hypothesis is true Induction or falsification? correct answers Falsification - induction is logically invalid - science must proceed by eliminating false ideas Hypothesis testing: confidence interval correct answers - it is not true that there is a 95% chance that the parameter is in the 95% confidence interval - there is a 95% probability that if you collect another s...

What is a skolem constant? Ans: Used to remove existential quantifier from FOL to transform to propositional logic. C1. What is a definite clause? Give an example Ans: A clause with exactly one positive literal. Example: - NOT A or NOTB or C - C What is a Horn Clause? Is it CNF or DNF? Ans: Clause with at most 1 positive literal. Example: - NOT A or NOT B or C - NOT A or NOT B or NOT C CNF Which tree search strategy do we use for Backward Chaining to solve first order logic? Ans: ...

Z-Score - Answer Data points only. Measurement of a scores relationship to the mean. A statistical measure that indicates the number of standard deviations a data point is from its mean. Variance - Answer How far a set of numbers are spread. Used for Data set. Hint Words = Risk, spread. Multiplication Rule - Answer A method for finding the probability that both of two events occur. When the probabilities of multiple events are multiplied together to determine the likelihood of all of...

True/False: Probability Tables PT(X) do not always sum to one correct answers FALSE True/False: Conditional Probability Tables CPT(X|Y=y) always sum to one correct answers TRUE True/False: Conditional Probability Tables CPT(X|Y) always sum to one correct answers FALSE True/False: Marginal distribution can be computed from joint distributions correct answers TRUE True/False: Two random variables X,Y are independent, if and only if P(X,Y)=P(X)P(Y) correct answers TRUE True/False: A ...

WGU C207 OA 2023. By quantifying risk - Answer In what way does probability theory inform decision-making for managers? Ordinal data - Answer Which type of data are the Olympic medals of gold, silver, and bronze examples of? It reduces the amount of incomplete data. It cleans data. - Answer What are some of the aspects of data quality management? Choose 2 answers Missing data Misspelled data - Answer Which two attributes indicate potential data quality issues when evaluating a set of no...

WGU C207 OA Questions and Answers Latest Updated 2024/2025 | Graded A+. Analytics is a broad term that refers to a variety of tools that inform managerial decisions. Which term can be used to describe managerial decisions Prescriptive What are two reasons for the increasing use of analytics in organizational decision making? Choose 2 answers Relatively lower cost of computer storage Higher computer processing power In what way does probability theory inform decision-making for managers? By ...

Z-Score - Data points only. Measurement of a scores relationship to the mean. A statistical measure that indicates the number of standard deviations a data point is from its mean. Variance - How far a set of numbers are spread. Used for Data set. Hint Words = Risk, spread. Multiplication Rule - A method for finding the probability that both of two events occur. When the probabilities of multiple events are multiplied together to determine the likelihood of all of the events happening. Word ...