Asked by pablo

If 1,000 students take a test that has a mean of 40 minutes, a standard deviation of 8 minutes, and is normally distributed, how many would you expect would finish in between 24 and 48 minutes?

11 years ago

Answered by Damon

http://davidmlane.com/hyperstat/z_table.html

11 years ago

Answered by Damon

I get .8186 between 24 and 48
so
about 819 out of 1000

11 years ago

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