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Distributions

Normal Cumulative Distribution

Menu: [Distribution]-[Normal CD]

Description: This command calculates the probability of normal distribution data falling between a and b.

dx

Definition of Terms

Lower : lower bound

Upper : upper bound

a : lower bound (Lower)

b : upper bound (Upper)

σ: population standard deviation (σ > 0)

μ : population mean

Calculation Result Output

prob : normal distribution probability p

z Low : standardized lower limit z value

z Up : standardized upper limit z value

Example

Upper bound : 36 (lower bound : −∞)

Population standard deviation : 2

Population mean : 35

•Statistics Wizard Operation

(1)On the menu bar, tap [Calc] and then [Distribution].

(2)Select [Normal CD] and then tap [Next >>].

(3)Input values.

(4)Tap [Next >>].

(5)To display the graph, tap $.

uProgram, eActivity or Main Application

Command: NormCD￿

Command Syntax

Lower value, Upper value, σ value, μ value

Input Example:

NormCD −∞,36,2,35

20080201