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Concept: The expected value for a random variable is the same as the average value of that variable over many simulations.
Tools: RandomBinomial function, Slider, Sampler
The animal control department has a truck that is used to find stray cats and dogs. A truckload of 30 animals averages 55% dogs. The weight of a dog is 35 pounds and a cat is 12 pounds. What is the average weight of 30 animals in the truck?
Source: Data in Depth, pg 241; Key Curriculum

ANIMAL CONTROL 1
Animalcontrol1.jpg

ANIMAL CONTROL 2

AnimalControl2.jpg

ANIMAL CONTROL 3

AnimalControl3.jpg
Completed TinkerPlots files and pdfs which contain screen shots of the files are below. Each file contains a set of steps to complete the model and guiding questions (and answers) or hints.