In a study of 685 cars in a parking lot, there were only 3 different types: sedan,sports car and mini van. 211 of the cars were mini vans. Use this information to estimate the probability of choosing a car that is a sedan or sports car.

211 out of 685 is approximately 30% of the total... personally I would say about 1/3. (You can find this out by dividing 211 by 685 and you will get a decimal - - then move it over two places to the right and you now have a percentage to work with.)

Knowing that... 2/3 of the vehicles are left - - -so they must be sedans or sports cars if they are not minivans.

Signed... previous Math teacher