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uStudent-t Distribution Probability
Student-t distribution probability calculates the probability of t distribution data falling
between two specific values.
p =
Γ
Γ
df
π
2
df
2
df + 1
–
df+1
2
df
x
2
1+
dx
a
b
∫
a :lower boundary
b : upper boundary
Perform the following key operations from the statistical data list.
5(DIST)
c(T)
c(C.D)
Data is specified using parameter specification. The following shows the meaning of each
item.
Lower .......................... lower boundary
Upper .......................... upper boundary
df ................................. degrees of freedom (df > 0)
Save Res ..................... list for storage of calculation results (None or List 1 to 20)
Execute ....................... executes a calculation
After setting all the parameters, align the cursor with [Execute] and then press the function
key shown below to perform the calculation.
• 1(CALC) ... Performs the calculation.
# There is no graphing for Student-t distribution
probability.
1-4-8
Distribution (DIST)
20011101