Question

Math Help

Answer 1

Regarding the first question, the scale and the fact that the graph starts at 50 and not at 0 on the vertical axis, shows a deceptive growth trend. Therefore, the creator of this graph wants the reader to conclude that "The car dealership business is expanding very quickly"

In the second question, using wider bars, different colors or an interval of 1 will not make the graphic stop being misleading. Therefore the correct option is the fourth one: Start the y axis at zero and use an interval of 5 or 10. In the attached image the same graphic is shown but with these changes made and the difference is clearly noticed.

In the third question, if The Camera Shop wants to use the measurement of the central tendency that expresses how successful they are in the sale of cameras should consider that the data present high dispersion. For example, in February the value is of 21 and in December the value is of 125. The mean is a sensitive measure to the extreme values, for that reason of all the measures of central tendency cited the mean is the one that gives a higher result and for that may be the ideal to present to management the success of sales:

mean = 63.16

interquartile range = 47.5

mode = 35

median = 59.5