On average, a doctor will treat between 0 and 5 patients a day. The random variable x represents the number of patients treated on a given day.
x 0 1 2 3 4 5
P(x) 0.01 0.11 0.35 0.42 0.05 0.06
This probability distribution results in a mean score of approximately 2.57. How do you interpret the mean?
a. The doctor will treat an average of 3 patients each day
b. The doctor will treat an average of 5 patients each day
c. The number of patients treated differs
d. The number of patients that the doctor will treat varies by 3 patients