Reply to How common is a math or reading MAP score at the 99th percentile in this area?

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Reply to "How common is a math or reading MAP score at the 99th percentile in this area?"

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[quote=Anonymous][quote=Anonymous]Uhhhhhhh 99th percentile (99.0) = 1 per 100. There are ~150,000 students in MCPS. If we were exactly like the nation as a whole, we'd have 1500 kids in the 99th. If our 98th is like the 99th nationally, we'd have 3000. And then, DCUM skews whiter and wealthier than most places online, and those kids, for a variety of reasons, tend to score higher. And then there's going to be a strong self-selection bias for a thread titled "How common is a math or reading MAP score at the 99th percentile in this area?"

I never understand why people think folks are lying or trolling. They could be? But it's easily possible that 10 people on DCUM have kids in the 99th percentile. [/quote]

I'm guessing you're not a math or engineering major... 150K students are spread out across 12 Grades (not counting K..).

Using your figure of 3000, thats about 250 per grade level spread out across all schools.

Using TPMS as the example, that seems just about right, I would think.  In 2019, about half-ish were picked up by TPMS, another (fifth'ish)? by Eastern, another set spread out amongst the CES programs, etc.[/quote]

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