(a) Combining the data for both lathes in Exercise 112, construct a histogram.
(b) How would you describe the shape of the histogram?
Exercise 112
Two different lathes turn shafts to be used in electric motors. Measurements made of their diameters (in cm) are
Construct two stem-and-leaf diagrams to see if you should suspect that the two lathes are turning out shafts of different diameters.