The following data represent the ages on the ceremony date of the Academy Award winners for Best Actor and Best Actress in a leading role for the 33 years from 1977 to 2009.

(a) Construct a back-to-back stem-and-leaf plot.
(b) Compare the two populations. What can you conclude from the back-to-back stem-and-leaf plot?

Best Actor Ages 37 42 30 53 32 32 47 51 48 45 42 45 29 43 37 40 38 60 46 43 37 45 Best Actress Ages 31 21 32 32 41 49 61 41 45 45 42 39 35 25 49 35 28 30 29