This is 6.1-6.3

Binomial calculator https://homepage.divms.uiowa,edu/~mbognar/applets/bin.html An acne cream claims that in a study of thousands of individuals, the cream is 90% effective in preventing pimples, meaning 10% of people who used the cream still got acne. Twenty of your friends take it, and four of them still get acne. List the: a. Population b. Parameter c. Sample d. Statistic 2. Below is a standard binomial distribution for this study and some additional information. Using mathematics, explain why it would or would not be unusual for four or more individuals to get acne using this product