A trimmed mean is the mean of a dataset that has been calculated after removing…
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Statistics Tools
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CalculatorsRegression CalculatorStatistics Tools
Power Regression Calculator
by Erma Khanby Erma KhanThis calculator produces a power regression equation based on values for a predictor variable and…
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CalculatorsStatistics ToolsSummary Statistics Calculator
Shannon Diversity Index Calculator
by Erma Khanby Erma KhanThe Shannon Diversity Index is a way to measure the diversity of species in a…
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CalculatorsHypothesis Tests CalculatorStatistics Tools
Type II Error Calculator
by Erma Khanby Erma KhanA type II error occurs in hypothesis tests when we fail to reject the null…
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CalculatorsHypothesis Tests CalculatorStatistics Tools
Hedges’ g Calculator
by Erma Khanby Erma KhanHedges’ g is a way to measure effect size, which gives us an idea of…
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CalculatorsChi-Square Tests CalculatorStatistics Tools
G-Test of Goodness of Fit Calculator
by Erma Khanby Erma KhanA G-test of Goodness of Fit is used to determine whether or not a categorical…
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CalculatorsStatistics ToolsSummary Statistics Calculator
Grand Mean Calculator
by Erma Khanby Erma KhanA grand mean is calculated as the average of the means of several groups. To…
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CalculatorsConfidence Intervals CalculatorStatistics Tools
Poisson Confidence Interval Calculator
by Erma Khanby Erma KhanThis calculator constructs a confidence interval for the mean of a Poisson distribution based on…
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CalculatorsDistributions CalculatorStatistics Tools
Binomial Distribution Calculator
by Erma Khanby Erma KhanThe Binomial distribution is one of the most commonly used distributions in statistics. To find…
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CalculatorsStatistics ToolsSummary Statistics Calculator
Outlier Boundary Calculator
by Erma Khanby Erma KhanThe interquartile range, often abbreviated IQR, is the difference between the 25th percentile (Q1) and…