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OpenStudy (anonymous):
a set of data is normally distributed with a mean of 52 and a standard deviation of 5 what percentage of the data is in the invterval 47-57
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OpenStudy (anonymous):
That is the region within exactly one standard deviation of the mean. It is recognised that 68.26894921371% of incidents occur in this region over a large enough sample.
OpenStudy (anonymous):
thanks bro really helped
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