One smartfile and two sets of task cards allowing the student to learn how to construct a line of best fit and make a prediction based on this data.
The Principal of your school wants his/her school to get into the Book of World Records for saying the tongue twister, "You cuss, I cuss, we all cuss for asparagus. In order to help your Principal out your class collects data and determines how long it would take your school to stand in a line and say this tongue twister.
Then the class uses historical data from the Hot Dog Eating Championships to determine the number of hot dogs eaten in 2016 (or whatever year you decide).
There are also two sets of task cards allowing your students to practice at their pace.