AP Statistics Review Practice Exam Questions 2024.

AP Statistics Review Practice Exam Questions 2024. Addition Rule - correct answer P(A ∪ B) = P(A) + P(A) - P(A ∩ B) aids in computing the chances of one of several events occurring at a given time. Alpha (α) - correct answer The probability of a Type I error. See significance level. Alternative Hypothesis - correct answer The hypothesis stating what the researcher is seeking evidence of. A statement of inequality. It can be written looking for the difference or change in one direction from the null hypothesis or both. Association - correct answer Relationship between or among variables. Back-Transform - correct answer The process by which values are substituted into a model of transformed data, and then reversing the transforming process to obtain the predicted value or model for nontransformed data. Bar Chart - correct answer A graphical display used with categorical data, where frequencies for each category are shown in vertical bars. Bell-Shaped - correct answer Often used to describe the normal distribution. See mound-shaped. Beta (β) - correct answer The probability of a Type II error. See power. Bias - correct answer The term for systematic deviation from the truth (parameter), caused by systematically favoring some outcomes over others. Biased - correct answer A sampling method is biased if it tends to produce samples that do not represent the population. Bimodal - correct answer A distribution with two clear peaks.