Question

In the dot plot above, the length of the coastline of each country in South America is shown in thousands of kilometers (\text{1000-km})(1000-km)left parenthesis, start text, 1000, negative, k, m, end text, right parenthesis, rounded to the nearest thousand kilometers. According to the dot plot, what is the mean length of coastline, in thousands of kilometers?

Answer 1

Given:

The length of coastline of each country in south America in thousands of kilometers.

To find:

The mean length of coastline, in thousands of kilometers

Explanation:

America is shown in thousands of kilometers so, using the given information

= 6(0) + 2(1) + 2(2) + 5(1) + 6(1) + 7(1)

= 30

= 30/15

= 2

Answer is 2 thousand kms