Assembly times for components must be understood in order to "level" the stages of a production process. Which of the following pair of histogram and a frequency polygon best resembles the following assembly time data? Class Interval Frequency 30 - under 32 5 32 - under 34 7 34 - under 36 15 36 - under 38 21 38 - under 40 34 40 - under 42 24 42 - under 44 17 44 - under 468 Select one: Histogram Frequency Polygon 30 925 Frequenc Frequency 15 10 3 10 5 31 33 35 37 39 41 43 45 Class Midpoints 31 33 35 37 39 41 43 45 Class Midpows a. Histogram Frequency Polygon 31 33 35 37 39 41 43 45 Class Midpoints 31 33 35 37 39 41 43 45 Class Midpoints O a. Histogram Frequency Polygon 30 30 25 25 Frequency Frequency 15 10 5 15 10 5 45 b. 31 33 35 37 39 41 43 45 Class Midpoints 31 33 35 37 39 41 43 Class Midpoints Histogram Frequency Polygon 30 Frequency 30 25 20 15 nh Frequency 10 10 5 31 33 35 37 39 41 Class Midpoints 43 45 c. 31 33 35 37 39 41 43 45 Class Midpoints Histogram Frequency Polygon 30 30 Frequency Frequency 10 5 10 5 43 45 O d. 31 33 35 37 39 41 43 45 Class Midpoints 31 33 35 37 39 41 Class Midpoints Histogram Frequency Polygon 30 30 625 15 10 5 15 10 5 45 31 33 35 37 39 41 43 Class Midpoints 31 33 35 37 39 41 43 45 Class Midpoints O b. Histogram Frequency Polygon 30 25 Frequence hang H Frequency 10 5 45 . 31 33 35 37 39 41 43 45 Class Midpoints 31 33 35 37 39 41 Class Midpoints Histogram Frequency Polygon 30 30 25 Frequency 15 10 5 10 5 31 33 35 37 39 41 43 45 Class Midpoints 31 33 35 37 39 41 43 45 Class Midpoints Histogram Friency Polygon 30 Frequency Frequency 10 10 5 3 o 31 33 35 37 39 41 Class Midpoints 31 33 35 37 39 41 43 45 Class Midpoints e