Asked by Anonymous
what is the proportion of people who drink more than 20 gallons of cofffee per year if the mean is 24.2 gallons and the standard deviation is 8.1 gallons
Answers
Answered by
PsyDAG
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.
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