An HMO is considering a marketing plan targeting patients with chronic diseases to increase the number getting a flu shot. Some preliminary analyses are conducted before implementing such a plan. Available data indicate that 40% of patients with chronic diseases get flu shots.
a)If 10 patients with chronic diseases are sampled, what is the probability that at least 4 get flu shots regularly?
b)What is the probability that at most 8 get flu shots regularly?
a) This is a question of binomial probability, with p = 0.4, n = 10, ...
The solution uses binomial probability to find out if a certain number of patients get flu shots regularly.