Respond to this discussion board post,To avoid issues from outliers causing skew, my friend will need to use measures of dispersion. I will advise him to use variance and standard deviation. Variance will let him know how far the different home prices he looks at are from the mean, while standard deviation will help him to determine where home prices fall in relation to the mean. Using Chebyshev's Theorem, he can know that 75% of the homes he looks at will fall within two standard deviations of the mean