Normal Curves Flashcards
1
Q
A
2
Q
Density Curve
A
On/above horizontal (x) axis; the area underneath is exactly 1
3
Q
68-95-99.7 Rule
A
Empirical Rule
4
Q
N(μ, σ)
A
Short-hand notation for normal distribution
N=Normal
Center=μ (mean)
Spread=σ (standard deviation)
5
Q
Standard Normal Distribution
A
Mean=0
Standard Deviation=1
6
Q
z = (x - μ) / σ
A
Normal Distribution Equation
7
Q
Normal Probability Plot
A
Shows linearity
8
Q
Z-Score
A
The standardized score
z = (x - μ) / σ
