The percentage of adults who have at some point in their lif

The percentage of adults who have at some point in their life been told that they have hypertension is 23.53%. If 11 adults are randomly selected, find the probability that at least 2 of them have been told that they have hypertension.

Solution

In the given problem n = 11,

x=no of people who have been told that they have hypertension

p = prob for success = 0.2353

X follows a Binomial distribution.

P(X>=2) = 1-P(X=0)-P(x=1) =0.7707