Make a statistical profile of your own statistics class. Items of interest might be any of the following. (a) Height, age, gender, pulse, number of siblings, marital status (b) Number of college credit hours completed (as of beginning of term); grade point average (c) Major; number of credit hours enrolled in this term (d) Number of scheduled hours working per week (e) Distance from residence to first class; time it takes to travel from residence to first class (f) Year, make, and color of car usually driven

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed