Please help with these questions. Thanks!

10. Using the information to the right (and Fuel Economy The highway milcage (in miles per gallon) for the rows and columns in the blank chart 30 small cars (4pts) below) to calculate the frequency Mileage (miles per gallon) Frequency distribution's mean. 29-33 34-38 12 39-43 2 44-48 Class Midpoint (x) Freq. (f) x . f The ages of the Supreme Court justices as of January 27, 2010 are listed. Find 11. the population mean and the population standard deviation of the data. (4pts) (Source: Supreme Court of the United Sites) 55 89 73 73 61 76 71 59 55 Find the population mean and standard deviation