Chapter 1.1, Problem 17E

(a)

To determine

To describe:the given graph is misleading.

Answer to Problem 17E

The graph violates the area principle through the bus and car ratio.

Explanation of Solution

Given:

  

Calculation:

In the given pictogram representation, the diagrammatical representation of one cars indicates two cars and one bus indicates 7 bus takers, and one walker indicates 2 walkers. It is not easy to capture data and shape of the data since each variable has varies in the proportion. But one who analyses the data through bar graph, his eyes reacts to the area of the bars as well as their height and eyes receive the right impression.

Conclusion:

Hence,the graph violates thearea principle through the bus and car ratio.

(b)

To determine

To make: a new graph which does notmisleads

Answer to Problem 17E

Here, is the graph that isn’t misleading.

  

Explanation of Solution

Calculation:

The bar graph would be able to give a true picture of distribution of data about the primary method of transportation to school. The bar graph for given data is below.

  

Conclusion:

Hence, the above graph isn’t misleading.