Quiz 1 Practice

A graph that displays the distribution of a quantitative variable, showing the frequency or relative frequency of data points in different intervals.

The range of values a quantitative variable takes, divided into equal sized intervals.

The count or percentage of data points that fall within a specific class interval.

A histogram with a single peak.

A histogram with two distinct peaks.

A histogram where the left and right sides are mirror images of each other.

A histogram where one side is extended further out than the other.

A graph that displays data over a sequence, typically time.

Objects described in a set of data, such as people, animals, plants, or things.

Characteristics that describe an individual, taking different values for different individuals. Examples include age, gender, or blood pressure.

Data where a quantity is measured for each individual. Examples include age in years, height in centimeters, or blood pressure in mmHg.

Data that describes a characteristic or category for each individual. Examples include gender, blood type, or hair color.

A type of graph used to display categorical data. It uses bars to represent the frequency or relative frequency of different categories.

A type of graph used to show how categorical data breaks down into its components. Each category is represented by a slice of the pie, with the size of the slice corresponding to the percentage of the whole.

A simple graph that shows each data point as a dot plotted on a number line. Useful for smaller data sets.

The difference between the first and third quartiles. It represents the spread of the middle 50% of the data.

A data point that falls significantly outside the overall pattern of the data. It might be much larger or smaller than the rest of the values.

A value smaller than Q1 - 1.5(IQR). It's a potential outlier on the lower end of the data.

A value larger than Q3 + 1.5(IQR). It's a potential outlier on the higher end of the data.

A structured approach to solving statistical problems by clearly defining the problem, planning the analysis, executing calculations, and summarizing the findings.

The average of a dataset, computed by summing all values and dividing by the number of values.

The middle value in a dataset when arranged in order. If the dataset has an even number of values, the median is the average of the two middle values.

A measure of how spread out the data is in a dataset. It's the square root of the variance.

The median of all the values less than the overall median.

The median of all the values greater than the overall median.

A five-number summary of data - minimum, first quartile, median, third quartile, and maximum.

A visual representation of the five-number summary, drawn as a box with whiskers.

The mean is influenced by outliers, whereas the median is resistant.

Two variables measured for each individual, aiming to explore if there's a relationship between them.

The variable that's measured or observed in a study, its value depends on the other variable.

The variable that potentially explains or influences changes in the response variable.

A graph that visually displays the relationship between two quantitative variables, plotting each individual as a point.

A way to describe the pattern in a scatterplot, referring to the overall shape of the points.

A way to describe the pattern in a scatterplot, indicating whether the points generally increase or decrease together.

A way to describe the pattern in a scatterplot, showing how closely the points fit the form.

A data value that falls significantly outside the overall pattern of the scatterplot.