If a researcher only wanted to examine the relationship between exercise and grade point average, to test the variables.

The complete question is as follows:

If a researcher only wanted to examine the relationship between exercise and grade point average, would be used to test the variables.

A.  correlation analysis

B.  regression

C.  hypothesis

D.  central tendency measures

The correct answer would be - A. correlation analysis.

Explanation:

To find the relationship between two variables the correlation analysis is the statistical method is used. It is used to find the what and how the one variable is related to the other variable in this method.

It is used to evaluate the relationship between any two quantitative variables.To examine the relationship between exercise and grade point average,b this method would be best as it also shows how strong is the relationship of variables.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

the missing space is phylum