Which element of the marketing mix is the only one that produces revenue?

Shelly Brunner owns a sports-themed restaurant which is located in an upscale business district in Chicago

One advantage that Shelly has is that she bought the lot she built her restaurant on 25 years ago when lots in the area were selling for $50,000. Shelly knows that several potential competitors have looked at bare lots near his business but haven't been willing to pay the asking prices, which are as high as $500,000. Which of the six major sources of barriers to entry is causing a disincentive for new firms to enter Shelly's industry? A) Capital requirements B) Economies of scale C) Product differentiation D) Government and legal barriers E) Cost advantage independent of size

A histogram can be constructed using either class frequencies or class relative frequencies as the heights of the bars

A) True B) False