Statistics expert

 I have assignments that require you to 

• Calculate the mean, weighted mean, median, and mode.
• Identify the most appropriate measure of central tendency to describe data.
• Calculate and interpret the range, variance and standard deviation.
• Understand the coefficient of variation, z-score, the empirical rule, and Chebyshev's Theorem.
• Calculate the mean and standard deviation of grouped data.
• Calculate percentiles, percentile rank, and quartiles of a data set.
• Construct and interpret box-and-whisker plots.
• Calculate and interpret the covariance and correlation coefficient for two data sets. 

The price will be negotiated.