what is the mean of the numbers?

Explanation:

Step1: Identify the data values

The number of stop - signs for each street: Peabody Street (2), Walker Street (5), Smith Street (8), Irving Street (4), Watson Street (6), Spring Street (2), Mason Street (7), Marshall Street (6).

Step2: Calculate the sum of data values

$2 + 5+8 + 4+6 + 2+7 + 6=40$

Step3: Determine the number of data points

There are 8 streets, so $n = 8$.

Step4: Calculate the mean

The mean $\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}=\frac{40}{8}=5$

Answer:

5