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Mathematics 8 Online
OpenStudy (anonymous):

Adult IQ scores have a bell-shaped distribution with a mean of 100 and a standard deviation of 15. Use the Empirical Rule to find the percentage of adults with scores between 70 and 130. 1) 99.7% 2) 100% 3) 68% 4) 95%

OpenStudy (zarkon):

where are you stuck?

OpenStudy (anonymous):

Everywhere idk how to do this

OpenStudy (zarkon):

how many 15's do you need to add to 100 to get 130?

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