If you were going to gather some statistics to create a scatter plot, draw a line of best fit, and interpret the slope and y-intercept in context, which of these would be a good statistical question to ask? Check all that apply.

A. What kind of car does your family drive?

B. What is your favorite color?

C. How is college student enrollment changing over the last century?

D. Was your height greater than 60 cm before your last birthday?

E. How tall are the students in your grade level at school?

F. What percentage of families in Florida had a radio in 1930?

1 answer

To create a scatter plot, draw a line of best fit, and interpret the slope and y-intercept, a good statistical question needs to involve two quantitative variables for correlation analysis. From the options presented, the suitable questions are:

C. How is college student enrollment changing over the last century?
(This question suggests a time series analysis where you could plot years against enrollment numbers.)

E. How tall are the students in your grade level at school?
(This question focuses on the height of students, allowing for a scatter plot of individual heights.)

The other options (A, B, D, F) are either categorical (A, B, D) or historical/percentage-focused (F), which would not yield the quantitative data needed for a scatter plot and line of best fit.