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t-Distribution
t-Distribution
Student's t PDF, CDF, and critical values
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Density & probabilities at t
Critical value t*
Degrees of freedom (ν)
t value
T ~ t(ν = 10) · f(t), P(T ≤ t), t = 2
P(T ≤ t)
0.963306
Density f(t)
0.061146
P(T ≥ t)
0.036694
P(|T| ≥ |t|)
0.073388
Percentile
96.3306
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Student's t density curve with the area for P(T ≤ t) shaded and t marked. P(T ≤ t) = 0.963306
Student's t density curve with the area for P(T ≤ t) shaded and t marked. P(T ≤ t) = 0.963306
t
-4
-3
-2
-1
1
2
3
4
2
