Duplicate of AP Statistics Vocabulary

The entire group of individuals which we are interested in knowing something about.

A number that describes some characteristic of a population.

The occurrence of one event or the other, or both.

A number between 0 and 1 that describes the proportion of an outcome in a chance process.

The response value a Least Squares Regression Line would expect for a given explanatory value.

An individual that falls well outside the pattern of data.

The middle number (resistant to outliers).

The range from Q1 to Q3.

The occurrence of two events at the same time.

A common form of blocking in comparing two different treatments, often on the same sample.

A fixed value used as a cutoff on what probability is or is not statistically significant.

An event that rarely would have happened just by chance.

The distribution of total values for categorical variables on a one-way or two-way table.

When a distribution is even across the full range of values of the variable.

When it is not possible for two event to occur simultaneously.

A procedure using a sample statistic to make a decision about the validity of a claim.

When only either the researchers or the subjects know which treatments were assigned to groups.

A diagram used to display the sample space of a chance process involving a sequence of outcomes

The maximum minus the minimum.

The distribution of just one sample.

A number from a sample used to estimate some characteristic of a population.

The proportion of a chance process will approach a single value as you do more trials.

A graph that shows the relationship between two quantitative variables using dots.

Decisions based through a process of chance.

The difference between an observed value and its predicted/expected value.

A class of density curves that are symmetric, single-peaked, and bell-shaped.

The science of data.

The most common number.

A smaller group of individuals whose information is used to infer about a larger group.

An outcome of a chance process is more likely to occur if it has not occurred for a long time.

The # of standard deviations an observation falls from the center of a Normal distribution.

A Normal distribution with mean 0 and standard deviation of 1.

When neither the researchers nor the subjects know which treatments were assigned to groups.

When the right and left sides of a distribution are mirror images of each other.

Individuals are monitored for measures of variables of interest but not influenced in response.

Making conclusions about a larger population based on sample data.

An inactive (fake) treatment for which some subjects may actually respond.

A non-symmetric distribution that has a distinct tail.

An imitation of a chance behavior that uses a model that accurately represents the situation.

The sum of the values of the observations divided by the number of observations.

The distribution of many samples.

The typical or common distance observations are away from the mean.

The set of all possible outcomes of a chance process.

A model that describes the overall pattern of a distribution.