A researcher is studying the relationship between the number of passers-by present in a situation and the time taken until a stranger in an emergency (e.g. someone having a heart attack) receives help from a passer-by.

Medium

< 1min

The table lists the time taken to sprint $400$400 meters by runners who all run in different temperatures as part of a study.

Medium

< 1min

Outcomes

8.PS.3

The student will apply the data cycle (formulate questions; collect or acquire data; organize and represent data; and analyze data and communicate results) with a focus on scatterplots.

8.PS.3a

Formulate questions that require the collection or acquisition of data with a focus on scatterplots.

8.PS.3b

Determine the data needed to answer a formulated question and collect the data (or acquire existing data) of no more than 20 items using various methods (e.g., observations, measurement, surveys, experiments).

8.PS.3c

Organize and represent numeric bivariate data using scatterplots with and without the use of technology.

8.PS.3d

Make observations about a set of data points in a scatterplot as having a positive linear relationship, a negative linear relationship, or no relationship

8.PS.3e

Analyze and justify the relationship of the quantitative bivariate data represented in scatterplots.

8.PS.3f

Sketch the line of best fit for data represented in a scatterplot.

4.05 Scatterplots and lines of best fit

Interactive practice questions