Statistical
Excel 2010
◉ 2 views
=T.INV.2T()
Returns the two-tailed inverse of the Student's t-distribution.
Applies To:
Excel for Microsoft 365Excel for Microsoft 365 for MacExcel 2024Excel 2024 for MacExcel 2021Excel 2021 for MacExcel 2019Excel 2016
=T.INV.2T(probability,deg_freedom)
Hover argument names in the table for details.
Output typeNumber
Popularity8 / 100
VolatileNo
Dynamic ArrayNo
📥 Download sample .xlsx — Coming soon
▦ Try in Playground
Dedicated file for this function — safe & lightweight · sample data + live formulas
⬇ Download Sample Workbook
A dedicated .xlsx for =T.INV.2T() with Persian sample data & live formulas — open in Excel and practice.
- Sheet “Sample” — data table + formula in place
- Sheet “Guide” — syntax, arguments & tips from this page
- Instant & secure (token + rate limit)
🧠 🧠 Quiz this function
%d questions — syntax, example & errors — test yourself!
◧ Arguments
| Argument | Type | Required | Description |
|---|---|---|---|
probability |
Number | Required | The probability associated with the Student's t-distribution. |
deg_freedom |
Number | Required | The number of degrees of freedom with which to characterize the distribution. |
▣ Examples
مقدار t توزیع t استیودنت برای مقادیر بالا (۰٫۶۰۶۵۳۳۰۷۶)
=T.INV.2T(A2,A3)
✦ Tips
- If deg_freedom is not an integer, it is truncated.
- T.INV.2T returns that value t, such that P(|X| > t) = probability where X is a random variable that follows the t-distribution and P(|X| > t) = P(X < -t or X > t).
- A one-tailed t-value can be returned by replacing probability with 2*probability. For a probability of 0.05 and degrees of freedom of 10, the two-tailed value is calculated with T.INV.2T(0.05,10), which returns 2.28139. The one-tailed value for the same probability and degrees of freedom can be calculated with T.INV.2T(2*0.05,10), which returns 1.812462. Given a value for probability, T.INV.2T seeks that value x such that T.DIST.2T(x, deg_freedom, 2) = probability. Thus, precision of T.INV.2T depends on precision of T.DIST.2T.
⚠ Common Errors
#VALUE!
If either argument is nonnumeric, T.INV.2T returns the #VALUE! error value.
Fix: مطمئن شوید Probability و Deg_freedom هر دو عددی هستند.
#NUM!
If probability <= 0 or if probability > 1, T.INV.2T returns the #NUM! error value. If deg_freedom < 1, T.INV.2T returns the #NUM! error value.
Fix: Correct the input value
💬 Comments & Q&A 0 approved
🔒 Your comment will be published after review.Share your thoughts — visible after admin approval
No comments yet — be the first!