The facts, figures, and other observations that are gathered through using one or more of your senses are called p. s this is science

Observation(s).But in definition data is facts, figures, and other evidence gathered through your observations.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .