Question

The scatter plot shows the number of books read by students in a library program.



A Box and Whisker plot is titled Number of books read by students. The number line ranges from zero to fifty in increments of five. The plot starts at ten and ends at thirty. There is a box which starts at fifteen and ends at twenty-five. There is a vertical line placed at twenty.



What is the interquartile range for the number of books read by students in the library program?


5


10


15


20

Answer 1

IQR = Q3 − Q1 = 25 − 15 = 10.