Ap statistics Study guides, Class notes & Summaries

AP Statistics Flashcards Question and answers 2023/2024Statistic - correct answer is a single measure of some attribute of a sample parameter - correct answer a quantity (such as the mean or variance) that characterizes a statistical population and that can be estimated by calculations from sample data parameter - correct answer any factor that defines a system and determines its performance Parameters of equations - correct answer Uniform: min and max [also need to know whether distrib...

AP Statistics Flashcards Study Questions 2024. Statistic - correct answer is a single measure of some attribute of a sample parameter - correct answer a quantity (such as the mean or variance) that characterizes a statistical population and that can be estimated by calculations from sample data parameter - correct answer any factor that defines a system and determines its performance Parameters of equations - correct answer Uniform: min and max [also need to know whether distrib. is di...

AP Statistics- Question and answers already passed 2023/20245 number summary - correct answer The minimum value, lower quartile, median, upper quartile, and maximum value for a data set. These five values give a summary of the shape of the distribution and are used to make box plots. The five numbers that help describe the center, spread and shape of data z score - correct answer a measure of how many standard deviations you are away from the norm (average or mean) -Number of stan...

Categorical Data correct answer: Assigns a unique value for each case, used to name or identify it Quantitative Data correct answer: A variable in which the numbers act as a numerical value, always have units Stem and leaf plot correct answer: Shows quantitative data values in a way that sketches the distribution of the data Ogive correct answer: a graph that represents the cumulative frequencies for the classes in a frequency distribution Histogram correct answer: Bar graphing ...

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 directio...

Variables can be ________ or ________. quantitative, qualitative ________ is the use of data to make informed decisions. Statistics Which of the following options is the correct answer to the problem? 4+5(23)-(16) = ________ 22 Statistics in Latin is ________, which means "state." status ________ research is best for testing cause and effect relationships between variables. Experimental A sample is________. a subgroup of the population Any eve...

Is mean resistant to outliers? correct answer: No, non-resistant Is median resistant to outliers? correct answer: Yes, resistant Is standard deviation resistant to outliers? correct answer: No, non-resistant What is included in the 5-number summary? correct answer: min, Q1, med, Q3, max IQR equation correct answer: IQR = Q3 - Q1 Which point divides the area under the density curve in half? correct answer: median Which point is the balance point of the density curve? corre...

AP Statistics Question and answers 100% correct 2023/2024 Inference for Regression (CONDITIONS) - correct answer Linear: True relationship between the variables is linear. Independent: observations, 10% condition if sampling without replacement. Normal: Responses vary normally around the regression line for all x-values Equal Variance: around the regression line for all x-values Random: Data from a random sample or randomized experiment Paired t-test: Phrasing Hints, H0 and Ha, Conclus...

AP StatisticsStatistical Significance - correct answer An observed effect too large to attribute plausibly to chance. Non-Response Bias - correct answer Bias introduced to a sample when a large fraction of those sampled fails to respond. P-Value - correct answer found by substituting the x-value in the regression equation; they're the values on the fitted line Empirical Rule - correct answer A statistical rule stating that for a normal distribution, almost all data will fall within thr...

Response Variables correct answer: variable of interest (y) Explanatory Variables correct answer: variable that explains y (x) Correlation Coefficent correct answer: measure strength of linear association Slope correct answer: b1= r(sy/sx) Y-Intercept correct answer: b0= ybar - (b1)(xbar) Point always on regression line correct answer: (xbar,ybar) R2 measures correct answer: fraction of variability of y accounted for by least squares linear regression on x Regression ...