The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic in one day. Compare the ages of the patients of doctor 1 and doctor 2 using the mean and the median of each data set.

Ages if doctors patients

Doctor 1 doctor 2

920| 3 5
875| 2 00236
973211| 1 37
0 2239

Key:means 29 <--9|2|3--> means23

If someone could please explain how I do it please. I don't understand how to do it. Thank you !

i don't get it can someone explain this to me to

Can someone please help me?

To compare the ages of the patients of doctor 1 and doctor 2 using the mean and median of each data set, you need to follow these steps:

1. Identify the stem-and-leaf plots for each doctor's patients. The stems in this case represent the tens digit, and the leaves represent the units digit of each age value.

2. Calculate the mean for each data set:
- For doctor 1: Add up all the ages and divide the sum by the total number of values.
- For doctor 2: Add up all the ages and divide the sum by the total number of values.

3. Calculate the median for each data set:
- For doctor 1: Arrange the ages in ascending order and find the middle value. If there are two middle values, average them.
- For doctor 2: Arrange the ages in ascending order and find the middle value. If there are two middle values, average them.

Let's go through the steps with the given data:

Doctor 1:
Ages: 32, 33, 92, 75, 12, 31, 17, 10, 20, 07, 30
Mean: (32 + 33 + 92 + 75 + 12 + 31 + 17 + 10 + 20 + 07 + 30) / 11 ≈ 32.45
Median: Arrange the ages in ascending order: 07, 10, 12, 17, 20, 30, 31, 32, 33, 75, 92
The middle value is the 6th value, which is 30.

Doctor 2:
Ages: 20, 23, 26, 29, 02, 36, 01, 03, 37, 22, 39
Mean: (20 + 23 + 26 + 29 + 02 + 36 + 01 + 03 + 37 + 22 + 39) / 11 ≈ 23.55
Median: Arrange the ages in ascending order: 01, 02, 03, 20, 22, 23, 26, 29, 36, 37, 39
The middle value is the 6th value, which is 23.

Therefore, the mean age for doctor 1's patients is approximately 32.45, while the mean age for doctor 2's patients is approximately 23.55. The median age for doctor 1's patients is 30, while the median age for doctor 2's patients is 23.

Nevermind I understand now. Thanks!