Stats Aide app for iPhone and iPad

Common calculators for students of math, statistics, science, and engineering (especially first year statistics), including:

Bayesian Analysis
Binomial Distribution
Arithmetic & Geometric Mean
Coefficient of Variance
Correlation Coefficient
Factorial
Grouped Data Arithmetic Mean
Harmonic Mean
Hypergeometric Distribution
Mean, Median, Mode
Negative Binomial Distribution
Normal Distribution
Percent error
Permutation and Combination
Poisson Distribution
Probability
Regression
Root Mean Square
Skewness
Standard Deviation
Standard Error
T-Test Calculator
Weighted Mean