Calculators

Calculates the Interquartile Range (IQR), which is the difference between the third quartile (Q3) and the first quartile (Q1). The IQR measures the spread of the middle 50% of a dataset.

Calculates the accuracy of a classification model, representing the proportion of correct predictions.

Calculates how many standard deviations a data point is from the mean of its distribution.

Calculates the probability of observing a specific number of successes in a fixed number of independent Bernoulli trials, given the probability of success on each trial.

Calculates the difference between the observed value and the predicted value from a regression model.

Calculates Spearman's rank correlation coefficient, measuring the strength and direction of association between two ranked variables.

This calculator applies the continuity correction, an adjustment used when approximating a discrete probability distribution (like the binomial distribution) with a continuous probability distribution (like the normal distribution).

Performs a non-parametric test to compare differences between two independent groups when the assumption of normality is violated. It calculates the U statistic and associated p-value.

Performs a Z-test to compare a sample mean to a known population mean or to compare two sample means when population variances are known.

Calculates the range (+/-) around a sample statistic (like mean or proportion) that likely contains the true population parameter.