Question

The histogram below shows the number of downloads of a song over time.

Answer 1

Given data:

• It is a graphical display where the data is grouped in to ranges

• A diagram consists rectangles, whose area is proportional to frequency of a variable and whose width is equal to the class interval.

• It is an accurate representation of the distribution of numerical data.

From Figure:  

        Each box in the graph (small rectangle box) is assumed to be one download. So, in the graph the time between 8 p.m to 9 p.m, the number of downloads are 8.75 approximately (because the last box is incomplete, therefore 8 complete boxes and 9th is more than half).

So, We conclude that the total number of downloads are approximately 9 in the time span of 8 p.m. to 9 p.m.