Statistics Calculator - Simplify Your Data Analysis

Calculator List

• Critical Value Calculator

  A Critical Value Calculator determines critical values for statistical tests based on significance levels and distribution types (e.g., Z, t, chi-square).

• P-Value Calculator

  A P-Value Calculator helps determine the statistical significance of a test result by computing the probability of obtaining a given test statistic under the null hypothesis.

• Confidence interval Calculator

  A Confidence Interval Calculator estimates the range within which a population parameter is likely to fall, based on sample data and a chosen confidence level.

• One Sample Z Test Hypothesis Calculator

  A One Sample Z Test Hypothesis Calculator determines whether a sample mean significantly differs from a known population mean using the Z-test, given a known standard deviation.

• One Sample T Test Hypothesis Calculator

  A One Sample T Test Hypothesis Calculator tests whether the mean of a sample significantly differs from a known population mean when the population standard deviation is unknown.

• One Proportion Z Test Hypothesis Calculator

  A One Proportion Z Test Calculator determines if a sample proportion significantly differs from a known population proportion using the Z-test for large samples.

• Two Sample Z Test Hypothesis Calculator

  A Two Sample Z Test Hypothesis Calculator compares the means of two independent samples to determine if there is a significant difference, assuming known population standard deviations.

• Two Sample T Test Hypothesis Calculator (Equal and Unequal Variance)

  A Two Sample T Test Hypothesis Calculator compares the means of two independent samples to determine if they are significantly different, accounting for equal or unequal variances when the population standard deviations are unknown.

• Two Proportion Z Test Hypothesis Calculator

  A Two Proportion Z Test Hypothesis Calculator compares the proportions of two independent samples to determine if there is a significant difference between them using the Z-test.

• Pooled variance calculator

  A Pooled Variance Calculator computes the combined variance of two independent samples, assuming equal population variances, for use in statistical tests like the Two Sample T-Test.

• Correlation Coefficient Calculator

  A Correlation Coefficient Calculator measures the strength and direction of the linear relationship between two variables using Pearson's or Spearman's correlation.

• Coefficient of Determination Calculator

  A Coefficient of Determination Calculator computes 𝑅 2 R 2 , indicating the proportion of variance in the dependent variable explained by the independent variable in a regression model.

• Regression Equation Calculator

  A Regression Equation Calculator determines the equation of the best-fit line for a given dataset, showing the relationship between independent and dependent variables.

• Covariance Calculator

  A Covariance Calculator measures the direction and strength of the linear relationship between two variables by computing their covariance.

• Sum of Square Error (SSE) Calculator

  A Sum of Square Error (SSE) Calculator computes the total squared differences between observed and predicted values in a regression model, measuring the model’s error.

• Total Sum of Square (SST) Calculator

  A Total Sum of Squares (SST) Calculator measures the total variation in a dataset by summing the squared differences between each data point and the mean.

• Anova Calculator

  An ANOVA Calculator determines whether there are statistically significant differences between the means of three or more groups by analyzing variance.

• Standard Deviation Calculator

  A Standard Deviation Calculator computes the measure of data dispersion by determining how much individual values deviate from the mean in a dataset.

• Mean, Median, Mode, Range, Quartiles, and Interquartile Range Calculator

  A Mean, Median, Mode, Range, Quartiles, and Interquartile Range Calculator computes key statistical measures to describe the central tendency and spread of a dataset.

• Quartiles Calculator

  A Quartiles Calculator determines the first (Q1), second (Q2/median), and third (Q3) quartiles, dividing a dataset into four equal parts to analyze data distribution.

• Range Calculator

  A Range Calculator computes the difference between the maximum and minimum values in a dataset, measuring the spread of the data.

• Mid-Range Calculator

  A Mid-Range Calculator computes the average of the maximum and minimum values in a dataset, providing a simple measure of central tendency.

• Five Number Summary and Outlier Calculator

  A Five Number Summary and Outlier Calculator computes the minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum, while identifying potential outliers using the interquartile range (IQR) method.

• Weighted Mean Calculator

  A Weighted Mean Calculator computes the average of a dataset where each value has a specific weight, giving more importance to certain values based on their significance.

• Mean Absolute Deviation Calculator

  A Mean Absolute Deviation (MAD) Calculator computes the average of the absolute differences between each data point and the mean, measuring data dispersion.

• Geometric Mean Calculator

  A Geometric Mean Calculator computes the central tendency of a dataset by finding the nth root of the product of all values, useful for analyzing ratios and percentages.

• Geometric Mean Return Calculator

  A Geometric Mean Return Calculator computes the average rate of return of an investment over multiple periods, accounting for compounding effects.

• Class Width Calculator

  A Class Width Calculator determines the difference between consecutive class boundaries in a frequency distribution, helping to organize data into intervals.

• Normal Distribution Calculator

  A Normal Distribution Calculator computes probabilities, percentiles, and critical values for a normally distributed dataset using the mean and standard deviation.

• Inverse Normal Distribution Calculator

  An Inverse Normal Distribution Calculator finds the data value (z-score or raw score) corresponding to a given cumulative probability in a normal distribution.

• Uniform Distribution Calculator

  A Uniform Distribution Calculator computes probabilities, expected values, and cumulative distribution for a uniform distribution, where all outcomes are equally likely within a given range.

• Z Score Calculator

  A Z Score Calculator determines how many standard deviations a data point is from the mean, helping to standardize and compare values in a normal distribution.

• Raw Score Calculator

  A Raw Score Calculator computes the original data value from a given z-score, mean, and standard deviation in a normal distribution.

• Degree of Freedom Calculator

  A Degree of Freedom Calculator determines the number of independent values in a statistical calculation, essential for hypothesis testing and variance analysis.

• Sample Size Calculator

  A Sample Size Calculator determines the required number of observations for a study to achieve a desired confidence level and margin of error.

• Permutation Calculator

  A Permutation Calculator computes the number of possible ordered arrangements of a set of items, considering or excluding repetitions.

• Combination Calculator

  A Combination Calculator computes the number of ways to select items from a set without considering order, useful in probability and statistics.

• Boxplot Calculator

  A Boxplot Calculator generates a visual summary of a dataset, displaying the minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum, while identifying potential outliers.

• Percentage Calculator

  Our Percentage Calculator is your go-to tool for all percentage-related calculations.

• Cylinder Volume Calculator

  this tool makes it easy to find the volume, surface area, and other measurements of a cylinder.

• KG ↔ LBS Converter Calculator

  Our KG to LBS Conversion Calculator helps you quickly and accurately convert kilograms to pounds in just seconds.

• ML ↔ OZ Converter

  Converting milliliters (ml) to ounces (oz) and vice versa is a common task in everyday life, whether you're cooking, measuring medicine, or working on a DIY project