Chapter 8.8, Problem 58S

To determine

To find whether the scatter plot of data shows a positive, negative or no relationship for size of household and the amount of water bill.

Answer to Problem 58S

The scatter plot for the size of household and amount of water bill shows positive relationship.

Explanation of Solution

Concept Used:

Correlation is the linear relationship between two quantitative variables.

There are three types of correlation.

In positive correlation both the variables are in same direction.

In negative correlation when one variable increases other variable decreases and vice versa.

There is no correlation when there is no relation between the two variables.

The number of people in a household uses water .As there is increase in the number of household would also increase the amount of water consumed by people hence increases the water bill.

Therefore, it has a positive relationship.

Conclusion:

Hence, the scatter plot for the size of household and amount of waterbill shows positive relationship.