Discussion Topic When we first learn arithmetic, we focus on
working with whole numbers. Then, we extend
our understanding to fractions and negative
numbers.
In algebra, we transfer these same skills to
expressions involving variables. What
elementary skills have you used so far in this
course, and how have you extended them?

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