Like univariate analysis, bivariate analysis can be descriptive or inferential. Inferential statistics is based on statistical models. Inferential statistics can be contrasted with descriptive statistics. It comprises of descriptive analysis and inferential analysis. The evaluation of MDL-based inferential procedures often uses techniques or criteria from computational complexity theory. "Applied statistics" comprises descriptive statistics and the application of inferential statistics. They include both descriptive and inferential statistics. Inferential statistics, which includes hypothesis testing, is applied probability. Inferential statistics includes techniques to measure relationships between particular variables. Like other forms of statistics, it can be inferential or descriptive. This involves the application of inferential and pragmatic rules. Put another way, the number of "walks" through the inferential digraph became computationally untenable. The inferential mood has five pure tenses. The existence of inferential forms has been attributed to Turkic influences by most Bulgarian linguists. The inferential mood is used to report unwitnessed events without confirming them.