2. Application Rashad wants to wallpaper the four walls of his bedroom. The room is rectangular and measures 11 feet by
13 feet. The ceiling is 10 feet high. A roll of wallpaper at the
store is 2.5 feet wide and 50 feet long. How many rolls should
he buy? (Wallpaper is hung from ceiling to floor. Ignore doors
and windows.)

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