• design, conduct, and report on an experiment to investigate a relationship between two variables
  
  
• create scatter plots
  
  
• interpret a scatter plot to determine if there is an apparent linear relationship

*Design, conduct, and report on an investigation into one of the following:

• spring extension versus mass
• mass versus volume for several samples of the same substance
• price in Canadian dollars versus price in US dollars for books and magazines
• temperature versus time of day over a two-day period (nonlinear)
• height versus "arm stretch"--distance between fingertips with arms fully extended
• any other possible relationship you wish to investigate

• determine the lines of best fit from a scatter plot for an apparent linear relationship by:
  - inspection
  - using technology (equations are not expected)

• draw and justify conclusions from the line of best fit

Create a scatter plot to investigate the relationship between:

• the distance, in kilometres, that a student lives from school and the time, in minutes, required to travel to school each morning
• the number of cars in the school parking lot at 9 a.m. and the day of the week

Examine your scatter plot to:

• describe the patterns of the dots
• account for the dots that do not lie on the line
• state a relationship in words for your plot

  Use your ruler. Estimate and draw the line that best fits your dot pattern. Could your line be used to make predictions? Would any point that lies on the line have meaning with respect to the two variables?

Draw a line of best fit. What conclusions can be drawn from this data? Describe the relationship between shots made and distance.