Conceptually, how is standard error(of the mean) different from standard deviation?If you use the formula for calculating population standard deviation on a sample, would you overestimate or underestimate the Variability of the population? Why? How do we correct with these bias?

Representatives from the U.S. census bureau recently visited Provo, UT to determine the typical household size for that area. Results from their analysis are as follows: mean = 8.5 people; median = 4 people; mode = 4 people. Is this a normal distribution or one that is positively or negatively skewed? If they could only include one measure of central tendency in their report, which should they choose? Why? Edit View Insert Format Tools Table 12pt v Paragraph B J U A2