a) In any distribution with finite mean and variance, how probable is it to find a score
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a) In any distribution with finite mean and variance, how probable is it to find a score that falls 3 or more standard deviations from the mean? (Hint: A probability is expressed as a fraction from 0 to 1.)
b) If the distribution is normal, what is the probability of encountering a score that is 3 or more standard deviations from the mean?
c) Why are the probabilities different in questions (a) and (b)?
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Related Book For
The Joy Of Stats A Short Guide To Introductory Statistics In The Social Sciences
ISBN: 9781487527297
3rd Edition
Authors: Roberta Garner, Michael Ash
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