21. Academy Award Winners 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 41 years from 1978 to 2018. Best Actor Ages 30 40 42 37 76 39 50 55 54 50 59 36 62 43 51 48 44 32 42 36 33 37 38 60 32 45 60 46 40 45 41 47 29 43 37 38 45 39 53 52 41 Best Actress Ages 32 41 33 31 74 33 32 22 29 29 60 61 21 41 26 33 44 80 42 33 54 36 45 45 49 39 34 26 25 38 26 35 35 28 30 29 61 62 49 33 28 (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?