In Google Sheets, the function T.DIST.RT is used to calculate the right-tailed probability of the Student's t-distribution. It provides the probability that the observed t-value is greater than a given value (x) for a specified degrees of freedom.

The syntax for the T.DIST.RT function is as follows: T.DIST.RT(x, degrees_freedom)

x: This is the value at which you want to evaluate the right-tailed probability of the t-distribution. degrees_freedom: This represents the degrees of freedom for the t-distribution. It is a positive number.

The right-tailed probability is the probability of observing a t-value greater than the given value (x) under the t-distribution with the specified degrees of freedom. It is commonly used in hypothesis testing to determine the significance of a t-statistic.

The T.DIST.RT function returns a value between 0 and 1. A value of 0 indicates that the observed t-value is extremely unlikely under the null hypothesis, while a value close to 1 suggests that the observed t-value is likely and not significant.