PACKAGE DEAL OF AP STATISTICS 2023/2024.

SRS - correct answer -unbiased, each unit has the same chance of being chosen -independent-selection of one unit has no influence on the selection of other units -all possible samples of n objects are equally likely Stratified random sample - correct answer -you know something about the populat...

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 regre...

5 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 da...

Statistical 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 reg...

Statistical Significance - correct answer When your discovered p-value is less than your alpha (.05 if not given). States that chance alone would rarely produce an equally extreme result. Non-Response Bias - correct answer A bias caused by a number of people who did not respond to the survey. ...

observational study - correct answer observe individuals and collect data without any interference with conditions what are the two different types of observational studies - correct answer retrospective and prospective Retrospective observational study - correct answer an observational study ...

response variable - correct answer values of this variable record the results of each trial with respect to what we were interested in trial - correct answer the sequence of several components representing events that we are pretending will take place population - correct answer the entire gro...

variable - correct answer holds information about the same characteristic for many subjects categorical variable - correct answer where the data collected places the individuals in various categories or groups quantitative variable - correct answer where the data collected is numerical and it ...

describing and comparing distribution - correct answer SOCS - shape, outliers, center, spread, with context, (compare if necessary 2 distributions) Comparing and describing scatterplots - correct answer DUFS - Direction, unusual features, form, and strength z-score - correct answer The value i...