Question

the table shows the shipping costs for items of different values. shipping costs for items total cost of items shipping costs $25 $5.99 $45 $8.99 $50 $8.99 $70 $10.99 which best describes the strength of the model? a weak positive correlation a strong positive correlation a weak negative correlation a strong negative correlation

Explanation:

To determine the correlation, we analyze the relationship between total cost of items (independent variable) and shipping costs (dependent variable). As the total cost of items increases (from $25 to $45 to $50 to $70), the shipping costs also generally increase (from $5.99 to $8.99 to $8.99 to $10.99). This indicates a positive correlation. To assess the strength, we look at how closely the shipping costs follow the trend of increasing total cost. The values are relatively close to a linear trend (the increase in shipping cost is consistent with the increase in total cost), so it is a strong positive correlation.

Answer:

a strong positive correlation