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Mrs. Dewey showed Ming how to use the mean to average his spelling scores. She used connecting cubes. She said, “Each cube represents one spelling word. Make a tower of cubes to represent each of your spelling test scores. For example, the first tower will have 7 cubes because you spelled 7 words correctly on that test.”
After Ming made these five towers, Mrs. Dewey said, “Using just the cubes in your towers, even them out so that each of the five towers has the same number of cubes.”
- Is 8 a good number to represent all of Ming's scores? Why or why not?
- How did the scores of 9 and 10 affect the mean score for Ming's tests?
- Would Ming's mean score change if you did not include the scores of 9 and 10?
- Would Ming's median score change if you did not include the scores of 9 and 10? Why or why not?