D. and E. only Use the frequency distribution to complete parts (a)through (e).a) Determine the total number of observations.b) Determine the width of each class.c) Determine the midpoint of the second class.d) Determine the modal class (or classes).e) Determine the class limits of the next class if anadditional class were to be added.a) The total number of observations is 31.b) The width of each class is 5.c) The midpoint of the second class is 14.(Type an integer or a decimal.)Class7-1112-1617-2122-2627-3132-36Frequency461290d) The modal class(es) is/are(Use a hyphen to separate the limits of a class. Use a comma to separate answers. Type the classes in order from smallest to largest.)

class frequency 7-11 9 12-16 4 17-21 6 22-26 1 27-31 2 32-36 9

Ise the frequency distribution to complete parts (a) rough (e). Determine the total number of observations. Determine the width of each class. Determine the midpoint of the second class. ) Determine the modal class (or classes). Determine the class limits of the next class if an dditional class were to be added. The total number of observations is 31. ) The width of each class is 5. The midpoint of the second class is 14. Type an integer or a decimal.) Class 7-11 12-16 17-21 22-26 27-31 32-36 Frequency 672946 4 1 9 0 ) The modal class(es) is/are Jse a hyphen to separate the limits of a class. Use a comma to separate answers. Type the classes