Calculator Topic

Basic Statistics

Explore our basic statistics calculators for finding averages, measures of spread, data positions, standard errors, covariance, and other foundational statistics. Choose the tool that matches your problem and get an instant answer with clear step-by-step working.

Calculators in This Topic

31 tools

5 Number Summary Calculator

Calculate the five-number summary of your data and see the results displayed in a box plot with clear steps.

Arithmetic Mean Calculator

Find the arithmetic mean of your data instantly and see a clear step-by-step solution showing the formula, sum of values, count, and...

Average Calculator

Open the calculator, enter your values, and get a clear result with helpful guidance.

Coefficient of Determination Calculator

Use this coefficient of determination calculator to find R² from Pearson’s r, SSR and SST, SSE and SST, or paired raw data....

Coefficient of Variation Calculator

Calculate the coefficient of variation from raw data or summary data. This tool gives the CV as a ratio and percentage, with...

Covariance Calculator

Find the sample or population covariance between two paired variables by entering X and Y values. Get instant results with clear step-by-step...

Geometric Mean Calculator

Find the geometric mean of positive values and view the solution using either the product method or the logarithmic method.

Grouped Data Mean Calculator

Find the mean of grouped data from class intervals or frequency data, with instant results and a clear step-by-step solution.

Harmonic Mean Calculator

Calculate the harmonic mean of positive values and see how the result is found using reciprocals and a step-by-step solution.

Interquartile Range Calculator

Calculate the interquartile range (IQR) of any dataset using Q1 and Q3, with a clear step-by-step solution.

Kurtosis Calculator

Calculate sample or population kurtosis, see whether your data is leptokurtic, platykurtic, or mesokurtic, and view a smooth graph comparing your distribution...

Lower and Upper Fence Calculator

Find the lower fence and upper fence for any dataset, flag potential outliers, and see the fence calculation with a clear step-by-step...

Mean Absolute Deviation Calculator

Find the mean absolute deviation of a dataset and see how far the values are from the mean on average, with an...

Mean Calculator

Find the sample mean or population mean from a set of values, with the correct formula, notation, and step-by-step solution shown instantly.

Mean, Median, Mode Calculator

Find the mean, median, and mode of a dataset in one place. This calculator also shows the count, sum, and mode type...

Median Absolute Deviation Calculator

Calculate the median absolute deviation of a dataset and see a clear step-by-step solution.

Median Calculator

Open the calculator, enter your values, and get a clear result with helpful guidance.

Midrange Calculator

Find the midrange of a dataset by calculating the midpoint between the minimum and maximum values. Get instant answer with a clear...

Mode Calculator

Find the mode of a dataset with a frequency table and clear steps. The calculator also identifies whether the data is unimodal,...

Pooled Standard Deviation Calculator

Calculate the pooled standard deviation for two independent groups from raw data or summary data, with a clear step-by-step solution.

Pooled Variance Calculator

Calculate the pooled variance for two independent groups from raw data or summary data. Get instant results with a clear step-by-step solution.

Quartile Calculator

Find the first quartile (Q1), Second Quartile (Q2), and third quartile (Q3) for any dataset. Get instant results with a simple quartile...

Range Calculator

Find the range of a dataset with the maximum, minimum, and step-by-step solution.

Skewness Calculator

Calculate the skewness of sample or population data, see whether the distribution is left-skewed, right-skewed, or approximately symmetric, and view a smooth...

Standard Deviation Calculator

Open the calculator, enter your values, and get a clear result with helpful guidance.

Standard Error Calculator

Open the calculator, enter your values, and get a clear result with helpful guidance.

Standard Error of Proportion Calculator

Open the calculator, enter your values, and get a clear result with helpful guidance.

Statistics Calculator

Calculate descriptive statistics for one-variable or two-variable data, including central tendency, spread, covariance, correlation, and regression values.

Sum of Squares Calculator

Find the statistical sum of squares, or the algebraic sum of squares, with a clear step-by-step solution.

Variance Calculator

Open the calculator, enter your values, and get a clear result with helpful guidance.

Weighted Mean Calculator

Calculate the weighted mean from data values and their matching weights. This calculator shows the weighted average, weighted product table, and clear...