statistics test 2
Terms
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- regression effect
- regression guesses are always closer to the average
- regression fallacy
- when you think the "regression effect" is due to something else
- regression line
- a line through the averages which has a slope of r times SDy/SDx
- sd line
- a line through the averages that have a slope SDy/SDx
- mutually exclusive
- a and b are mutually exclusive because a and b can't both happen at the same time
- independent events
- a and be are independent if p(a/b) = P(a)
- a and b are equally likely if
- p(a)= p(b)
- P(A&B)
- P(A) time P(B given A)
- P (A or B)
- P(A) +P(B) - P(A and B)
- P (A or B) if a and be are mutually exclusive
- P(A) + P(B)
- P(A and B) if a and b are independent
- P(A) times P(B)