The oldest patient seen by Doctor 1 is 31 years old (the last digit on the left of the left vertical line is 1 and the stem is 3). The oldest patient seen by Doctor 2 is 35 years old (the first digit on the right of the right vertical line is 3 and the stem is 5). The difference between these ages is:
35 - 31 = 4
Therefore, the difference between the age of the oldest patient seen by Doctor 1 and the age of the oldest patient seen by Doctor 2 is 4 years. Answer: A. 4 years.
The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. What is the difference between the age of the oldest patient seen by Doctor 1 and the age of the oldest patient seen by Doctor 2?
Back-to-back stem and leaf plots are shown.The stem and leaf plot is titled 'Ages of Doctor's Patients.'
· The middle of the stem and leaf plot contains a column of the numbers 3, 2, 1, and 0 from top to bottom. On either side of these numbers are vertical lines.
· To the left of the left vertical line is the title 'Doctor 1.' To the left of the 3 from the middle and on the left side of the vertical line are no numbers. To the left of the 2 from the middle and on the left side of the vertical line is 9, 2, and 0. To the left of the 1 from the middle and on the left side of the vertical line is 8,7, and 5. To the left of the 0 from the middle and on the left side of the vertical line is 9, 7, 3, 2, 1, and 1.
· To the right of the right vertical line is the title 'Doctor 2.' To the right of the 3 from the middle and on the right side of the vertical line is a 5. To the right of the 2 from the middle and on the right side of the vertical line is 0, 0, 2, 3, and 6. To the right of the 1 from the middle and on the right side of the vertical line is 3 and 7. To the right of the 0 from the middle and on the right side of the vertical line is 2, 2, 3, and 9.
The key identifies that 29 left-arrow 9 vertical line 2 vertical line 3 right-arrow means 23.
A. 34 years
B. 1 year
C. 6 years
D. 27 years
1 answer
1 answer