The table below shows the lengths and weights of six dolphins at an aquarium. Use the data from Pax and Snowflake to create a linear model that predicts the weight (y) of a dolphin given its length (x). Which dolphin’s weight differs most from the value predicted by this model?NameLength (ft)Weight (lb)Snowflake8.2549Shadow7.4501Corky8.4557Pax7.6519JoJo5.8460Blaze6.8488

Using Pax and Snowflake, the slope is (549 − 519) ÷ (8.2 − 7.6) = 50 pounds per foot. The model predicts weight = 50x + 139, so for JoJo’s 5.8-foot length it predicts 429 pounds, while JoJo weighs 460 pounds—a difference of 31 pounds. The other dolphins’ differences are smaller, so JoJo’s weight differs most from the prediction.

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