Two friends are trying to get the best buy on a streaming service for movies. John chooses to sign up with Soupstream Streaming Service, which requires a one-time signup fee of $80, and then charges 50 cents per movie watched. His friend Matt chooses Mo’data Streaming Service because it has no signup fee. However, the Mo’data Service charges $3.00 per movie.

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