6.5.spi.2. interpret bar and line graphs to answer questions and solve
real-world problems
6.5.spi.3. determine the mean of a data set
6.5.spi.7. connect data sets and their graphical representations (i.e., bar
graphs, circle, graphs, and stem-and-leaf plots)
6.5.spi.8. make conjectures and predictions based on data
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