What is the relationship between mortality rates and poverty level?

How does the training frequency affect muscle growth for bodybuilders?
The variables, in this case, are time, the intensity of training and the diet. These are the three basic factors that affect muscle growth. These variables can be measured using some interval level of scale because they affect muscle growth differently in bodybuilders. This scale will be giving some difference in categories in the manner they affect the dependent variable here which is muscle growth. The data, in this case, will be analyzed mathematically and so will give some discrete results (Sahin, Serdar, Serteser, Unsal & Ozpinar, 2018).
9. What is the relationship between mortality rates and poverty level?
This research question is intended to establish the existence of any relationship between the mortality rates within a population and the poverty level of that population. The variables in these case will be poverty and death rate which will be measured using the ordinal level scale because it will be giving the degree to which these variables affect each other. The variables, in this case, will be having some continuous characteristics because they rise and fall at some level.
10. How does technological development impact learning in schools?
This research question has two directions, that is, the dependent variable may affect the independent in two ways either positively or negatively. The variables, in this case, will include the teaching techniques used by the teachers, the accessibility of the learning materials and so on this will have some positive impact on the learning processes. These variables will be measured using the ordinal level scale because they will be categorized and rated on the impact they have on the subject of study.
References
Pratt, M. G. (2015). Crafting and Selecting Research Questions and Contexts in Qualitative Research. Handbook of Qualitative Organizational Research: Innovative Pathways and Methods, 177.
Celli, B. R., Decramer, M., Wedzicha, J. A., Wilson, K. C., Agustí, A., Criner, G. J., … & Vogelmeier, C. (2015). An official American Thoracic Society/European Respiratory Society statement: research questions in chronic obstructive pulmonary disease. American journal of respiratory and critical care medicine, 191(7), e4-e27.
Sahin, O. N., Serdar, M., Serteser, M., Unsal, I., & Ozpinar, A. (2018). Vitamin D levels and parathyroid hormone variations of children living in a subtropical climate: a data mining study. Italian Journal of Pediatrics, 44(1), 40.