1. For the question below, decide if it would gather numerical data (also called quantitative data) or categorical data (also called qualitative data).

"As what gender do you identify?"

1. The university track coach took the resting pulse rates of all the members of the team.

Is this an observational study, or an experiment?

1Two different doses of morphine given to cancer patients.

2.The level of pain from 1 to 10.

3.The tolerance to morphine built up over time.

4.The stage of cancer from stage 1 (early) to stage 4 (metastasized).

which one is the Response variable, Confounding variable, Lurking variable and Explanatory variable