4.2 Flashcards
(3 cards)
1
Q
derivation
A
is the distance from the mean:
deviation score=σ = X-µ and µ IS THE MEAN OF THE POPULATION
2
Q
variance
A
equals the mean of the squared deviations. Variance is the average squared distance from the mean. σ²=(X-µ)²
3
Q
standard deviation
A
standard deviation = √variation
