Can you please help me answer question 4 A through D please, is a homework I really need your help

The EPA must estimate gas mileage of new cars . For one type of car ( Brand X ) the agency ran 25 tests and obtained the following clata ( in miles per gallon ) . miles pergallon number of cars 27-30 5 31 - 34 8 35- 38 6 39 - 42 5 43- 46 a ) Draw a histogram that represents this frequency distribution . b) What is the level of data in this sample ? ( nominal, ordinal, interval ratio ) ( ) Find the mean and standard deviation of this grouped data. ( show the work for your calculations. ) 2 ) A similar test was run on Brand Y cars and the results gave X= 33 mpg with S = 2.77 mpg. using the coefficient of variation, which brand gets more consistent gas mileage ? ( Explain your answer. )