This is a QR code scavenger hunt activity that requires students to solve for the area under a normal standard distribution curve given the z-score.
Print out the pages and hang around the classroom in a random order, creating 15 stations. (If you hang them in the order they are originally printed, the students will just be working around the room in a circle, versus "hunting" for the answers.
Students start at one QR code. When they scan the code, it will give them a problem to solve, Once they get the answer, they must look around the room at the answers at the top of the pages of the other stations. When they find the answer, they scan the QR code at that station to get their next problem. When they end up at the station they started at, they are done.
This activity really lends itself to students checking their own work - if they do not find their answer posted around the room, they should go rework the problem.