What does the 68th percentile mean?

There are numerous places where you may have seen the 68th percentile (sixty-eighth percentile) used. You know that your measurement or score is in the 68th percentile of a group, but do you know what it actually means? The 68th percentile can mean different things and we will start by giving you a couple of examples:

Test Score: This may be the most common place where percentile is used in daily life. If your test score is in the 68th percentile, it means that you scored better than 68 percent of all the test takers. It also means that 32 percent scored the same or better than you.

Growth Chart: A growth chart is often used by pediatricians to show how a child's height, weight, and head circumference compare to other children over time. If your child's height is in the 68th percentile, it means that 68 percent of the children are shorter than your child, and 32 percent of children are the same or taller than your child.

Based on the examples above, this is how we would define the 68th percentile: The 68th percentile means that 68 percent or more is below you and 32 percent is above you. The percentile is a way of illustrating how common your result is compared to others.

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What does the 69th percentile mean?
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