The following table gives the marks scored by 100 students in an entrance examination.
Marks0.1010−2020−3030−4040−5050−6060−7070−80No. of students (Frequency)4101622201882
Represent this data in the form of a histogram
We represent the class limits along x-axis on a suitable scale and the frequencies along y-axis on suitable scale.
Taking class-intervals as bases and the corresponding frequencies as heights, we construct rectangles to obtain the histogram of the given frequency distribution as shown in the figure.