Problem page a family has two cars. during one particular week, the first car consumed 15 gallons of gas and the second consumed 30 gallons of gas. the two cars drove a combined total of 1500 miles, and the sum of their fuel efficiencies was 70 miles per gallon. what were the fuel efficiencies of each of the cars that week

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