Question

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:

sample mean = $\overline{x}$= _______

Short answer

Mean$=4.754$

Step-by-step solution

Given information

From sixty-five car salespersons, 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 in one week.

Explanation

According to the given information, the data is

$$\begin{gathered} 33333333333333444444444444444444455555 \\ 555555566666666677777777777 \end{gathered}$$

The calculation of mean:

role="math" localid="1647957007559" $$\begin{gathered} \frac{{\sum }_{i=1}^{65}x}{65}=\frac{309}{65} \\ =4.754 \end{gathered}$$