Let’s see a practical example where the bar graph can be used to understand data more easily.
Following bar graph shows the data for the average temperature of 6 cities; A, B, C, D, E and F in (∘𝐶 ). Average temperatures of the cities are marked on the vertical axis as shown below.
Based on the given bar graph, answer the following questions.
Ques 1. Which is the hottest city among these 6 cities?
Ans: City F. If you take a glance at the bar graph then the bar corresponding to City F is the tallest amongst all ( 50∘𝐶). Hence, City F is the hottest city.
Ques 2. If the temperature of a city exceeds 25∘𝐶, it is considered Can you name the warm cities?
Ans: Draw a 25∘𝐶 horizontal line on the graph above. All cities having their average temperature above this line will be included in the list. So the warm cities are B, C and F.
Ques 3. What is the difference in temperatures between the hottest and the coldest cities?
Ans: The temperature of the hottest city (F) is approximately 48∘𝐶 And the temperature of the coldest city (D) is around 9𝐶 Hence, the difference between the temperatures of hottest and coldest cities is 48 – 9 = 39∘𝐶].