Consider the Following to Answer the Question(s) Below

question 20

Multiple Choice

Consider the following to answer the question(s) below:
A regression was performed to predict the selling price of a yacht in thousands of dollars based on the number of rooms it had, its age (years) , and its length (feet) . The R2 is 68.45%. The equation is given here.
Selling Price = 120.51 + 7.46 Rooms - 1.78 Age + 2.83 Length
-Which of the following statements is true?

• A) For a given age and length, every extra room is associated with an additional $7,460 in the average selling price of the yacht.
• B) The model fits 68.45% of the data.
• C) Every additional foot of length causes the selling price of the yacht to increase by $2,830.
• D) The price of a yacht goes down $1,780 with every year it ages.
• E) The selling price of an individual yacht cannot be predicted with this model.

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Definitions:

Sori

Clusters of sporangia, often found under fern leaves, where the spores are produced.

Ferns

A group of non-flowering vascular plants that reproduce via spores and have leaves typically referred to as fronds.

Fronds

The leaf-like parts of ferns and some other plants, often large and divided into sections.

Homospory

Production of one type of spore that gives rise to a bisexual gametophyte. Compare with heterospory.