1. Suppose the COVID vaccination rate is 68% in your area. This rate is determined by taking the ratio of fully vaccinated people - those who received the full dose of vaccine, either with or without a booster - to the total number of people. 25 people are randomly selected from your area and their vaccination status is checked to determine how many are fully vaccinated.

Determine the following

a) What is the random variable?Is it continuous or discrete?

b) What is the mean number of people who are fully vaccinated?

c) What are the variance and standard deviation?