Unit 4 Test Recovery (M8)

Front

What is the age of a tree that is 8 feet tall?

Back

6 Years

Front

Is this line an accurate line estimate of best fit for the data?

Back

No

Front

Which scatter plot shows a linear relationship between x and y?

Back

Graph C

Front

What are the coordinates of the outlier?

Back

(9,1)

Front

What is the equation of the line of best fit?

Back

y= -2x + 10

Front

Define 'line of best fit'.

Back

A line that best represents the data on a scatter plot, showing the trend of the data.

Front

What is a scatter plot?

Back

A graph that displays values for typically two variables for a set of data.

Front

What does an outlier represent in a data set?

Back

A data point that differs significantly from other observations.

Front

How do you determine the slope of a line?

Back

The slope is calculated as the change in y divided by the change in x (rise/run).

Front

What is the purpose of a line of best fit?

Back

To make predictions based on the trend of the data.