Questions: 3) Use your calculator to compute the mean, median, range, sample standard deviation and sample variance for the six percent-returns (Return % column) of both stock portfolios (do not convert the volues in the returns column to decimal form). Round your answers to 3 decimal places. Refer to page 169-170 for instructions on how to compute descriptive statistics on the TI-84/83. Returns () Portfolio A (Returns %) Portfolio B (Returns 96) Mean Median Range Standard deviation Variance