Statistics Calculator - Grading Tool
Correlation
Chi-Square
t-Test
Descriptive Statistics
Select a problem type above to begin.
Correlation Calculator (Pearson / Spearman)
Correlation Type:
Pearson Correlation
Spearman Rank Correlation
X values (space or comma separated):
Y values (space or comma separated):
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Input format:
Enter values separated by spaces or commas. X and Y must have the same number of values.
Chi-Square Calculator
Test Type:
Goodness of Fit
Contingency Table (Independence)
Number of Categories:
Expected Probabilities (space or comma separated):
Observed Frequencies (space or comma separated):
Format:
Enter probabilities that sum to 1, and observed frequencies. Both should have the same number of values.
Number of Rows:
Number of Columns:
Format:
Enter observed frequencies in the grid below.
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t-Test Calculator
Test Type:
One Sample t-Test
Two Independent Samples t-Test
Paired Samples t-Test
Population Mean (μ₀):
Sample Data (space or comma separated):
Format:
Enter individual sample values separated by spaces or commas.
Sample 1 Data (space or comma separated):
Sample 2 Data (space or comma separated):
Format:
Enter individual values for each sample separated by spaces or commas.
Before/Measurement 1 (space or comma separated):
After/Measurement 2 (space or comma separated):
Format:
Must have same number of values. Each pair at same position.
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Descriptive Statistics Calculator
Dataset (space or comma separated):
Format:
Enter numeric values separated by spaces or commas (at least 2 values).
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