A study was performed on the sustainability behaviors of corporations. Corporate

Question

A study was performed on the sustainability behaviors of corporations. Corporate sustainability refers to business practices designed around social and environmental considerations. Data on the level of support for corporate sustainability were obtained for 898 senior managers. Level of support was measured quantitatively. Simulation was used to convert the data to a scale ranging from 0 to 160? points, where higher point values indicate a higher level of support for sustainability. This converted data was used to make the accompanying histogram. Complete parts a and b below.

the UPDATED url for graph is https://lh3.googleusercontent.com/-E6vuT7XrtEd3cPEaCob03-GOEjEhXHitlCYFPey7wWL54BXg3zLWx4UOopO5iEm6bbNsw=s143

a. What type of histogram is? given, frequency or relative? frequency?

A.Frequency, because the levels on the horizontal axis represent the numbers of observations that fall into each class

B.Relative? frequency, because the percents on the vertical axis represent the proportions of the total number of observations falling into each class

C.Relative? frequency, because the levels on the horizontal axis represent the proportions of the total number of observations falling into each class

D.Frequency, because the percents on the vertical axis represent the total number of observations falling into each class

b. Use the graph to estimate the percentage of the 898 senior managers who reported a high? (100 points or? greater) level of support for corporate sustainability.

_____%

?(Round to the nearest integer as? needed.)

Explanation / Answer

The given histogram is relative frequency because

B.Relative frequency, because the percents on the vertical axis represent the proportions of the total number of observations falling into each class.

In order to estimate the percentage of the 898 senior managers who reported a high level of support for corporate sustainability, we can proceed as follows :

Required percentage = 100*( Area covered by the line with x=898 / Area covered by the entire histogram )

Putting the values from the enlarged image of graph, we get the numeric value of the percentage.

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