WBMD 3-1: Bio Stat Quiz 1 - Prelim

Which of the following best defines statistics?

• Study of biological systems

• Systematic collection, tabulation, and analysis of data
  

• Study of health and disease
  

• 1. Manipulation of laboratory results

Biostatistics is applied statistics that deals with:

• Mathematics of engineering problems

• Data from physics experiments

• Medical and biological problems

• 1. Economic and financial issues

A variable that can be measured and expressed in numbers is called:

• Qualitative variable

• Quantitative variable

• Independent variable

• Dependent variable

Eye color and gender are examples of:

• Continuous variables

• Discrete variables

• Qualitative variables

• 5. Quantitative variables

In an experiment testing the effect of a new drug, the independent variable is:

• The patient’s reaction

• The dosage of the drug

• The time of day

• The hospital location

In an experiment testing the effect of a new drug, The dependent variable in the same experiment is:

• The drug itself

• The patient’s condition after treatment

• The doctor’s observation

• The hospital setting

5. The number of books in a library is an example of:

• 5. Continuous variable

• 5. Discrete variable

• 5. Ordinal variable

• 5. Interval variable

5. Which of the following is continuous?
   

• 5. Number of siblings

• 5. Test scores rounded to whole numbers

• 5. Height of students

• 5. Number of cars in a parking lot

A population refers to:

• A small subset of the data

• The entire group under study

• Only the qualitative data collected

• The result of statistical analysis

11. A sample refers to:
    

• 11. A complete set of population data

• 11. Any infinite number of individuals

• 11. A smaller group representing the population

• 11. Only quantitative observations