Statistical Functions Unit Test Results

Dataset: [1000000, -1000000, 999999, -999999, 1000, -1000]

Purpose: Tests handling of large numbers and extreme positive/negative values. This case checks:

• Processing of large magnitude numbers
• Correct handling of positive and negative values
• Precision in calculations with large differences between values

Results verified using Excel's Statistical Functions

Dataset: [1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 5]

Purpose: Tests handling of datasets with multiple repeated values. This case checks:

• Mode calculation with multiple modes
• Median calculation with even number of values
• Impact of repeated values on variance and standard deviation

Results verified using hand calculations

Dataset: [1, 1.5, 2, 2.1, 2.2, 2.3, 8, 9, 10, 15]

Purpose: Tests handling of skewed distributions. This case checks:

• Skewness calculation accuracy
• Kurtosis with non-normal distribution
• Quartile calculations with uneven spacing

Results verified using R statistical software