Dr Molefe Surveys 50 University Students to Discover the Relationship

question 206

Multiple Choice

Dr Molefe surveys 50 university students to discover the relationship between textbook price and ratings of readability. Dr Molefe finds that for these two variables the correlation coefficient is -0.70. This indicates that

• A) more expensive books tend to receive higher readability ratings than less expensive books.
• B) there is no relationship between textbook price and ratings of readability.
• C) increasing a textbooks price will cause a decrease in its readability rating.
• D) more expensive books tend to receive lower readability ratings than less expensive books.

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Definitions:

Basin

A large, bowl-shaped depression in the Earth's surface, often drained by a major river and its tributaries.

Volcanic Unit

A segment of the Earth's crust formed by volcanic activity, characterized by a distinct composition and age.

Eruption

The discharge of lava, ash, and gases from a volcano or other opening in the Earth's surface.

Hot Spot

A region in the Earth's mantle from which hot plumes of magma rise to the surface, often forming volcanic islands.