II. We learned in Exercise 3.25 that about 70% of 18-20 year olds consumed alcoholic beverages in 2008. We now consider a random sample of fifty 18-20 year olds. (a) How many people would you expect to have consumed alcoholic beverages

You would expect for 35 people to have consumed alcoholic beverages.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they consumed alcoholic beverages, or they did not. The probability of a person having consumed alcoholic beverage is independent of any other person. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

The expected value of the binomial distribution is:

We learned in Exercise 3.25 that about 70% of 18-20 year olds consumed alcoholic beverages in 2008.

This means that

We now consider a random sample of fifty 18-20 year olds.

This means that

How many people would you expect to have consumed alcoholic beverages

You would expect for 35 people to have consumed alcoholic beverages.

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

c

step-by-step explanation:

i think because what else can be a sample of every member