WGU C207 Data-Driven Decision Making Objective Assessment Exam 2026 Verified Questions with Correct Answers

WGU C207 Data -Driven Decision Making Objective Assessment Exam 2026 Verified Questions with Correct Answers In a normal distribution, approximately what percentage of data falls within ±1 standard deviation of the mean? A. 50% B. 68% C. 95% D. 99.7% Rationale: This comes from the Empirical Rule (68 –95–99.7) , a frequent WGU test topic. The Central Limit Theorem states that as sample size increases: A. The population becomes normal B. The sample mean distribution becomes normal C. Variance increases D. Bias increases Rationale: CLT applies to the sampling distribution of the mean , not the population itself Which statistic …