This online statistical tool calculates left-tailed and right-tailed p-values from various test scores (z-score, chi-square, Student’s t-value).
This percentile calculator utilizes two commonly used methods to compute a percentile value for the given data set.
This percentile rank calculator finds the percentile rank of a number in the given data set using two common methods.
Computes the number of permutations P(n,k) given values of the parameters “n” and “k”, that must be non-negative integers. The calculations are performed using arbitrary-precision decimal arithmetic. The result is presented both in scientific notation and in the form of a long integer number.
Computes the probability of an exact number of Poisson event occurrences, given the number of occurrences and the average rate of occurrences as well as cumulative Poisson probabilities.
Generates a set of pseudo random numbers within a predefined range. One can choose the precision that defines the number of digits after the decimal point. In case the precision equals to 0 a set of integer pseudo random numbers is generated. Comma or space can be chosen as separators between the generated numbers.
This online calculator computes the quadratic regression line parameters as well as the number of input points and the correlation coefficient. The results are presented in the graph.
In statistics quartiles partition is the distribution of a sorted data set into four quarters each containing 25% of the data. This quartile calculator utilizes two most commonly used methods of quartile partition and computes three quartiles of the given data set.