Students in a high school class have collected dataon the gas mileage of their parents cars. The data are summarized in the table below.
Gas Mileage (based on miles per gallon)
Mean – 22.7
Median – 24
Variance – 16.8
The students would like to convert the results to kilometers per liter to compare the results with a class in Holland. If 1 mile/gallon = .425 kilometers/liter, make a table showing the correct conversion for each statistical parameter.
Mean – 9.65
Median – 10.20
What is the varianceand how is it obtained?
Variance can be thought of as having units equivalent to square of the units for mean. Why? Because variance is …
The solution gives an explanation of how the variance is calculated, with the final answer.