WGU C207 DATA DRIVEN DECISION MAKING FINAL EXAM LATEST UPDATE QUESTIONS AND ANSWERS (VERIFIED ANSWERS) | GRADED A+

In the month of December, there is a strong positive correlation between airline ticket sales and retail sales. Which question should the researcher consider before concluding that the correlation statistic implies that airline sales drive retail sales? Does a causal relationship truly exist? Are the data biased? Is the sample size large enough? Does the sample accurately reflect the population? ----CORRECT ANSWER----------- Does a causal relationship truly exist? A hardware store has found that there is a 0.25 probability that a customer buys an electrical product, a 0.45 probability that a customer buys a plumbing product, and a 0.10 probability that a customer buys an electrical product if they purchase a plumbing product. Which statistical rule can be used to determine the probability that a customer buys a plumbing product given that this customer has purchased an electrical product? Bayes' theorem Multiplication Combination Conditional probability ----CORRECT ANSWER-----------Bayes' theorem A medical care provider determines the probability that a patient needs treatment for a broken bone, the probability that a patient needs treatment for a concussion, and the probability that a patient needs treatment for both a broken bone and a concussion. Which two techniques apply in finding the probability that a patient needs treatment for a broken bone and a concussion? Choose 2 answers. Intersection Union Multiplication principle Mutually exclusive ----CORRECT ANSWER-----------Intersection Multiplication principle