FIGURE 2- 4

question 5

Multiple Choice

FIGURE 2- 4
-Suppose we have data for 1000 students for a period of one year.The data show that those students who spend more hours studying have a higher grade point average (GPA) .We can say that

• A)there is a causal relationship between hours of study time and GPA.
• B)there is a positive correlation between hours of study time and GPA.
• C)more hours spent studying leads to a higher GPA.
• D)if hours of study time increase,then GPA will automatically increase.
• E)having a higher GPA leads students to spend more time studying.

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Definitions:

Masonry Firm

A company specializing in the building and construction of structures using bricks, stone, concrete blocks, and other masonry materials.

Marginal Product

The extra production resulting from the use of an additional unit of a specific input, like labor or capital.

Productivity

The measure of the efficiency of production, often quantified as the ratio of output to inputs in the production process.

Bricklayers

Skilled tradespeople who lay bricks to construct brickwork, which includes walls, foundations, and other structures.