Lion

Mathematics

18 April, 20:10

Mr. Sanders teaches a painting class. He makes the histogram below to summarize the

number of paintings each student has completed since the class began. Mr. Sanders says

that the histogram shows that of the students have finished 12 or more paintings.

Number of Paintings

Finished by Students

Number of Students

N

0-2 3-5 6-8 9-11 12-14 15-17

Number of Finished Paintings

What error did Mr. Sanders likely make, and what is the actual fraction of students who have

completed 12 or more paintings? Use the drop-down menus to explain his reasoning and correct

his mistake.

Mr. Sanders likely found that of the students have completed 12 or more paintings because

there are Choose ... bars on the histogram, and choose ... of the bars represent

students with 12 or more completed paintings. The actual fraction of the students who have

completed 12 or more paintings is Choose ...