Minitab takes an alternative here that we could have taken as well. Note, though, that Minitab uses two rows for each of the stems 7, 8, 9, 10, 11, 12, and 13. Then, ignoring the first column of numbers for now, the second column contains the stems from 6 to 14. how does the plot differ from ours? First, Minitab tells us that there are n = 64 numbers and that the leaf unit is 1.0. Here's what Minitab's stem-and-leaf plot of the 64 IQs looks like: Stem-and-Leaf of IQ Instead, you'd probably want to let some statistical software, such as Minitab or SAS, do the work for you. First and foremost, no one in their right mind is going to want to create too many of these stem-and-leaf plots by hand. That's all well and good, but we could do better.
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