(Solved): The gas mileages (in miles per gallon) for 30 cars are shown in the frequency distribution. Approxi ...

The gas mileages (in miles per gallon) for 30 cars are shown in the frequency distribution. Approximate the mean of the frequency distribution. The approximate mean of the frequency distribution is (Round to one decimal place as needed.) During a quality assurance check, the actual contents (in grams) of six containers of protein powder were recorded as \( 1532,1523,1500,1513,1526 \), and \( 1509 . \) (a) Find the mean and the median of the contents. (b) The third value was incorrectly measured and is actually 1517. Find the mean and the median of the contents again. (c) Which measure of central tendency, the mean or the median, was affected more by the data entry error? (a) The mean is (Round to one decimal place as needed.)