An example of a variable measured on a ratio scale is

What differentiates ordinal from interval scales?

Which temperature profile curves on the graphs were most likely generated from analysis of an enzyme from a bacteria found in the hot geysers of Yellow Stone national park? And which pH curve is likely generated from a living cell that has high concentration of hydroxide ions.    

Which research question should be answered by computing a correlation coefficient?

When the computed correlation coefficient between variables X and Y is negative, we will see

Chimpanzees have 24 pairs of chromosomes in each somatic cell. What is the 2n (diploid) number for chimpanzees? __________  

When a person who  is standing up (in a neutral spine posture) actively sidebends to the right, they have a coupled rotation to the left. 

In a box-and-whisker plot, the “box” demarcates the

The graph shows the relative rates of action of four enzymes, A, B, C, and D. A solution with a pH of 6 contains enzyme C and its substrate. If a base is gradually added to this solution, the rate of action of enzyme C would most likely  

In a positively skewed distribution, which value is largest?