The projection screen in the school auditorium is 3 times as long and 3 times as wide as the screen in the library. The screen in the library is 3 meters long with a perimeter of 10 meters.
What is the perimeter of the screen in the auditorium?
What is the area of each screen? 6
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What is the perimeter of the auditorium screen? )
m

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