Casio CLASSPAD 330 3.04 - Manual (Page 459)

20090601
SProgram, eActivity or Main Application
Command: TPD :
Command Syntax
x value, df value
Input Example:
TPD 2,5
Student- t Cumulative Distribution
Menu: [Distribution]-[Student-T CD]
Description: This command calculates the probability of the Student- t distribution data
falling between a and b .
p =




.
df

2
df
2
df + 1
–
df +1
2
df
x 2
1+ dx
a
b
a : lower bound (Lower)
b : upper bound (Upper)
Definition of Terms
Lower : lower bound
Upper : upper bound
df : degrees of freedom ( df > 0)
Calculation Result Output
prob : Student- t distribution probability p
t Low : lower bound value you input
t Up : upper bound value you input
Example
Lower bound : 1.5 (upper bound : d)
Degrees of freedom : 18
• Statistics Wizard Operation
(1) On the menu bar, tap [Calc] and then [Distribution].
(2) Select [Student-T CD] and then tap [Next >>].
(3) Input values.
(4) Tap [Next >>].
(5) To display the graph, tap .
7-11-7
Distributions