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Compatibility function
TINV
Returns the two-tailed inverse of the Student t distribution; replaced by T.INV.2T.
Rarely usedDifficulty 1450 · AdvancedUsage rank #455 of 520
When to use it
The two-tailed inverse t distribution. Replaced by T.INV.2T.
The shape of it
- Syntax
=TINV(probability, deg_freedom)
Worked examples
Round trip
=TINV(0.05464,60) → 1.96
Reverses the TDIST example.
5%, 10 df
=TINV(0.05,10) → 2.228138852
5% two-tailed on 10 df.
1%, 10 df
=TINV(0.01,10) → 3.169272673
1% on 10 df.
Worth knowing
- T.INV.2T is identical; T.INV is the one-tailed inverse.
- Always positive.
- Confidence intervals for a mean.
Where it goes wrong
- #NUM! for probability outside 0 to 1.
- Flagged by the Compatibility Checker.
Related
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