Virginia bought a pen at $3.90, a notebook at $1.40, and a desk calendar at $5.95 at a store that discounts all items at 20% . W
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Answer:
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.