Somewhere back in your middle school and high school math classes, you no doubt learned about the mean and standard deviation as fairly fundamental concepts in arithmetic and statistics. You also knew ...
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What's the average height and weight for babies and toddlers – and does it actually mean anything?
Every child grows differently – It's totally normal for kids to be bigger or smaller than others at the same age. What's more important is that they grow steadily over time. Growth charts are just a ...
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