Ch 9 Test: Data Analysis and Displays

Front

What is a negative linear relationship?

Back

A negative linear relationship is a type of correlation where, as one variable increases, the other variable decreases, resulting in a downward sloping line when graphed.

Front

What is a positive linear relationship?

Back

A positive linear relationship is a type of correlation where, as one variable increases, the other variable also increases, resulting in an upward sloping line when graphed.

Front

What is a nonlinear relationship?

Back

A nonlinear relationship is a type of correlation where the relationship between the variables does not form a straight line when graphed, indicating that the rate of change varies.

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a ratio of the number of favorable outcomes to the total number of possible outcomes.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide both the numerator and the denominator by their greatest common divisor (GCD).

Front

What is a histogram?

Back

A histogram is a type of data display that uses bars to represent the frequency of data within certain intervals or ranges.

Front

What is a line plot?

Back

A line plot is a type of data display that shows the frequency of data points along a number line, often using Xs or dots.

Front

What is a pie chart?

Back

A pie chart is a circular data display that shows the proportions of different categories as slices of the pie.

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a data display that organizes data points by separating the leading digit(s) (stem) from the trailing digit(s) (leaf).

Front

What does it mean if a graph's y-axis does not start at 0?

Back

If a graph's y-axis does not start at 0, it can exaggerate differences between values, making the data appear more significant than it actually is.