Question

Recent study of alcohol drinking practices among college students found that the average number of drinks per week consumed was 3.5 with a standard deviation of 2.0. Suppose you examined the number of drinks per week consumed by a large sample of students from the population. Which of the following statements is true? (Assume the distribution of number of drinks per week is unimodal). A.) Distribution is right skewed

B.) Distribution is left skewed

C.) The normal normal model would be a good description of these data

D.) About 2.5% of students in our sample would drink more than 7.5 per drinks per week

Answer 1

A

Explanation:

Here as we can see that minimum drink a person can drink is 0 and is

(3.5-0)/2 =1.75 std deviation away from mean

which reflects that distribution;s right tail is more extended

therefore option A is correct: Distribution is right skewed