regression,correlation, exponential

Front

What is the correlation coefficient?

Back

A statistical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.

Front

What does a correlation coefficient of -0.19 indicate?

Back

It indicates a weak negative correlation between the two variables.

Front

What is a scatter plot?

Back

A graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does an r value of 0.934 suggest about the relationship between two variables?

Back

It suggests a strong positive correlation between the two variables.

Front

What is the difference between linear and exponential functions?

Back

Linear functions have a constant rate of change, while exponential functions have a variable rate of change that increases or decreases multiplicatively.

Front

What is the equation of a line of best fit?

Back

It is a linear equation that best represents the data points in a scatter plot, minimizing the distance between the points and the line.

Front

What does exponential growth mean?

Back

It refers to a situation where a quantity increases at a rate proportional to its current value, leading to rapid growth over time.

Front

What does exponential decay mean?

Back

It refers to a situation where a quantity decreases at a rate proportional to its current value, leading to a rapid decrease over time.

Front

How do you determine if a graph is linear or exponential?

Back

A linear graph shows a straight line, while an exponential graph curves upwards or downwards, indicating a changing rate of growth or decay.

Front

What is the formula for a linear equation?

Back