Statistics: Prof. G.
Battaly, Westchester Community College, Valhalla, NY
Notes Bat's Bytes
Area and the Normal Curve
The graph below is the same as the
previous dynamic Normal Curve.
The graph in blue is the Standard Normal Curve with
a mean, μ = 0, and standard deviation,
δ = 1. The
red curve changes shape with different values for the mean and standard deviation as you move the sliders to change the values.
The AREA under the curves has been added here. Use the slider for the z score to find the area under the curve from - z to +z.
What is the area under the whole Standard Normal Curve (SNC)?
What is the area under the Normal Curve from z = -1 to z = +1?
What is the area under the Normal Curve from z = -2 to z = +2?
What is the area under the Normal Curve from z = -3 to z = +3?
G. Battaly, WCC, Created with GeoGebra