AP Statistics Vocabulary S1

A random variable of continuing trials until a success.

A group of experimental units that are similar and so are treated as one group.

A weird feeling in your stomach, or overall bellyache.

The (inaccurate) use of a regression line to estimate outside the range of the given data.

A long dangerous knife.

Making conclusions about a larger population based on sample data.

The probability that a chance process will approach a single value as you do more trials.

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

A sample selected by taking individuals that were easy to reach.

When neither the person measuring the response variable nor the subjects know which treatments were assigned to groups.

A random variable of successes with independent trials.

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

When you wake up in the morning and stretch.

The difference between an observed value and its predicted value.

The fraction of the variation that can be explained by the least-squares regression line (r²).

When the effects of two different variables on a response variable cannot be told apart.

When the design of a study would consistently give an over or underestimate of the true value.

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

The set of all possible outcomes of a chance process.

A sample where each individual was randomly chosen from the population.

Describes the linear relationship between two quantitative variables, from -1 to 1.

A study where each individual is randomly assigned to a treatment.

To confuse, perplex, or fluster to cause confusion.

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

Someone or something that is filled with pretentious nonsense.

A sample selected by taking individuals that select themselves.

The probability that an event will occur given that another event has already occurred.

A study where researchers deliberately impose treatments on the individuals.

A sample obtained by putting individuals into like-groups and randomly choosing some from each.

The four evenly sized sections of a set of ordered data.

The proportion of observations that are lower than a particular observation.

When randomly selected individuals cannot be contacted or refuse to participate.

What people living in Edinburgh used to shout before dumping their slop buckets out of the window.

A study that attempts to survey every individual of the population.

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

When something is moving counterclockwise, or in the wrong direction.