This activity is a great way to introduce the course. It is accessible for students at all levels, yet it contains some thinking and ideas that are fundamental to introductory statistics (null hypothesis, P-value, making decisions using data). This activity also gets students thinking about the definition of probability as the long run proportion of times that something would occur. I really liked having an Activity where students are doing something (rolling dice, collecting data, making dotplots) to set the tone for the class. We want this class to be one where students are often doing rather than just sitting being sponges.  Here is the dotplot my class came up with after many simulations.