Question

a bookstore tracked the data of the weight of their deliveries and the number of books in each box. they created a scatterplot and trend line based on the data.

which statement would be a reasonable prediction based on the scatterplot and trend line?

a box with 10 books should weigh about 2 pounds.
a box with 10 books should weigh about 4 pounds.
a box with 10 books should weigh about 6 pounds.
a box with 10 books should weigh about 12 pounds.

Explanation:

Identify the target variable

Using the Scatterplot Analysis knowledge point
We need to find the predicted weight of a box containing \(10\) books. On the horizontal axis (Number of Books), we locate the value \(10\).

Read the trend line value

Using the Line of Best Fit knowledge point

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Evaluate the given options

Using the Scatterplot Analysis knowledge point

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Answer:

• A box with 10 books should weigh about 2 pounds.
• A box with 10 books should weigh about 4 pounds.
• A box with 10 books should weigh about 6 pounds. (Correct answer)
• A box with 10 books should weigh about 12 pounds.