Answer:
Doctor 1 :
Mean = 12
Median = 12
Doctor 2 :
Mean = 16
Median = 18.5
Step-by-step explanation:
Data from the stem and leaf plot :
Doctor 1:
Age of the patients ( from the center to the left side )
1, 1, 2, 3, 7, 9, 15, 17, 18, 20, 22, 29
Mean age of patients :
Sum. Of ages / number of patients
= 144 / 12
=12
Median = 0.5(n+1)th term
n = 12
Median = 0.5(12 + 1)th term = 6.5th term
= (6th + 7th term)/2
= (9 + 15)/2
= 24/2 = 12
Doctor 2 :
patients mean age : (from the center to the right)
2, 2, 3, 9, 13, 17, 20, 20, 22, 23, 26, 35
n = 12
Mean = Sum of ages/ n
= 192/12
= 16
Median = 0.5(12 + 1)th term = 6.5th term
Median = (6th + 7th term)/2
= (17+20)/2
= 37/2 = 18.5
