RPN CAlcSeries Statistics for 2 Variables 1.0

This program calculates 2 variables statistics (grouped or ungrouped), linear regression and factorial functions, as described below:

• X mean
• X weighted mean
• Y mean
• X standard deviation (Sx)
• Y standard deviation (Sy)
• covariance (Sxy)
• X coefficient of variation (Vx)
• Y coefficient of variation (Vy)
• correlation coefficient (Vxy)
• sums of data points (Sum Xi, Sum Yi)
• sum of multiplication of data points (Sum XiYi)
• sums of squares of data points (Sum Xi2, Sum Yi2)
• data points could be derived from a set of ungrouped data points {(Xi, Yi), i=1, 2, ..., n}, or grouped data points {(Xi, Yi, fi), i=1, 2, ..., n}, where fi denotes the frequency of repetition of (Xi, Yi).
• calculation could be done, based either on n or n-1 sample number of elements
• linear regression
• X linear estimation
• Y linear estimation
• correlation coefficient (r) for linear regression
• factorial (extended range) - factorial results could be greater as E 999, meaning you can calculate factorials for numbers up to 450
• permutation (extended range)
• combination (extended range)
• on-line User Guide
• Hi-Resolution (320x480) support
• User-friendly interface
• RPN stack display
• 90 independent storage registers
• Upgrades / updates are life-time free of charge