(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
![](https://test.transtutors.com/qimg/97af9192-89d9-4c5d-af2d-bff8ba64d1ca.png)
Construct two stem-and-leaf diagrams to see if you should suspect that the two lathes are turning out shafts of different diameters.