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Use the following information to answer the next two exercises. Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars.

Looking at your box plot, does it appear that the data are concentrated together, spread out evenly, or concentrated in some areas, but not in others? How can you tell?

Find the mean for the following frequency tables

Use the following information to answer the next three exercises: The following data show the lengths of boats moored in a marina. The data are ordered from smallest to largest:

$$\begin{gathered} 16;17;19;20;20;21;23;24;25;25;25;26;26;27;27;27; \\ 28;29;30;32;33;33;34;35;37;39;40 \end{gathered}$$

Identify the mode

Use the following information to answer the next three exercises: Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars. Calculate the following:

median = _______

Use the following information to answer the next three exercises: Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell six cars; eleven generally sell seven cars. Calculate the following:

mode = _______

Use the following information to answer the next three exercises: State whether the data are symmetrical, skewed to the left, or skewed to the right.

$1;1;1;2;2;2;2;3;3;3;3;3;3;3;3;4;4;4;5;5$

In a survey, $40$people were asked how many times they visited a store before making a major purchase. The results are shown in Table $2.37$.

Use the following information to answer the next three exercises: State whether the data are symmetrical, skewed to the left, or skewed to the right.

$16;17;19;22;22;22;22;22;23$

When the data are skewed left, what is the typical relationship between the mean and median?

When the data are symmetrical, what is the typical relationship between the mean and median?