Master Baker asked 23 students how many books each person read last summer. The lowest amount was 10 books, and the highest amount was 19 books. The table shows the mean, median, range, and interquartile range (IQR) of the data set.
Summary values
Half Median Range RIC
13 12 9 6
(to)Select the best description of the center of the data set.
At the median and mean, we see that a "typical" student read approximately 12 either 13 books.
In the RIC and range, we see that a "typical" student read approximately 6 to 9 books.
In the number of students in the class, we see that a "typical" student read approximately 23 books.
(b)Select the best description of a spread from the data set.
From the number of students in the class we determine that the difference between the lowest and highest values ​​of books read is 23.
From the range we determine that the difference between the lowest and highest values ​​of books read is 9.
From the median we determine that the difference between the lowest and highest values ​​of books read is 12.
(c)Select the graph with the shape that best represents the summary values.
Graphic(The data set is not symmetric.) Graphic(The data set is symmetric.)