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T.DIST Function

The T.DIST function is one of the statistical functions. Returns the Student's left-tailed t-distribution. The t-distribution is used in the hypothesis testing of small sample data sets. Use this function in place of a table of critical values for the t-distribution.

The T.DIST function syntax is:

T.DIST(x, deg-freedom, cumulative)

where

x is the value at which the function should be calculated.

deg-freedom is the number of degrees of freedom, an integer greater than or equal to 1.

cumulative is a logical value (TRUE or FALSE) that determines the function form. If it is TRUE, the function returns the cumulative distribution function. If it is FALSE, the function returns the probability density function.

The values can be entered manually or included into the cells you make reference to.

To apply the T.DIST function,

  1. select the cell where you wish to display the result,
  2. click the Insert Function Insert Function icon icon situated at the top toolbar,
    or right-click within a selected cell and select the Insert Function option from the menu,
    or click the Function icon icon situated at the formula bar,
  3. select the Statistical function group from the list,
  4. click the T.DIST function,
  5. enter the required arguments separating them by commas,
  6. press the Enter button.

The result will be displayed in the selected cell.

T.DIST Function

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