Melissa used a stem and leaf plot to organize the ages of family members at a reunion. Her favorite aunt is 45 years old. Is the aunt's age included on the display? How do you know? no; The leaf "4" is on the 4th row; but the stem "5" is not.

no; The leaf "5" does not appear on the row that has 4 as a stem.

yes; Both of the digits "4" and "5" appear on the first two rows.

yes; The stem 4 appears and all digits between 1 and 9 are automatically included