Question

The dataset below shows the number of cars parked in the restaurant parking lot during the lunch hour each day for two weeks:

8 7 14 10 13 27 11 10 14 7 12 9 14 9

Which of the following statements is true based on the data set?

A: There is one outlier that indicates an unusually small number of cars were in the parking lot that day.

B; There are two outliers that indicate an unusually small number of cars were in the parking lot those two days.

C: There is one outlier that indicates an unusually large number of cars were in the parking lot that day.

D: There are two outliers that indicate an unusually large number of cars were in the parking lot those two days.

Answer 1

Answer: C: There is one outlier that indicates an unusually large number of cars were in the parking lot that day.

Explanation:

OK so here is our data: 8 7 14 10 13 27 11 10 14 7 12 9 14 9

the simple thing to do it reorganize it from greatest to least

(7,8,10,11,12,14,14,14, 27) as you can see, most of the numbers are 1 or two values apart, but 27 is a whooping 12 more than 14

And since 27 is way more than the rest, we can conclude that the number of cars is unusually large

Answer 2

C. On the 6th day, the cars parked in the lot were 27, which is the highest figure in the entire two weeks period. The other days the numbers varied with slight differences which is normal. However, the difference between the 6th day and the next day which recorded the highest number is very big. A difference of 13 cars is quiet large.