If There Is a

question 56

Multiple Choice

If there is a .75 correlation between the hours that students devote to studying and their grades, _____ between these two measures.

• A)a third variable, such as motivation and interest may account for the relationship
• B)we can conclusively say that this strong correlation indicates a causal relationship
• C)there is a weak, almost non-existent relationship
• D)there is a strong negative correlation

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Definitions:

Population Proportion

The fraction or percentage of individuals in a population who possess a specific attribute or characteristic.

Unbiased Estimator

An attribute of an estimator that ensures the expected value of the estimate equals the parameter being estimated.

Population Parameter

A numeric value that describes a characteristic of the entire population, such as the mean or standard deviation.

Unbiased Estimator

A statistical estimator that, on average, produces values equal to the parameter being estimated.