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
The first side is 10 inches the side parallel to this is (10×2)= 20 inches Height is half the length=1/2×20=10 inches The area of trapezium is given by: Area=1/2×h×(a+b) where a and b are the sides, h is the height. Thus the area will be: Area=1/2×10×(20+10) =1/2×10×30 =150 sq. inches
