CPH Exam: Biostatistics with all Correct & 100% Verified
Answers |Latest Version |Already Graded A+
Biostatistics definition: ✔Correct Answer-The development and application of statistical
reasoning and methods in addressing, analyzing, and solving problems in public health, health
care, biomedical, clinical, and population-based research.
Population ✔Correct Answer-the collection of all units (usually people) that we wish to make
inferences about.
Sample ✔Correct Answer-a subset of the population
Bias ✔Correct Answer-*a systematic error in a study that leads to uncertainty about the
estimates generated from the study.
*actually caused by the investigators in the design or conduct of the study
Paramaters ✔Correct Answer-Summary measures based on population data
Statistics ✔Correct Answer-estimates derived from sample data
Descriptive statistics ✔Correct Answer-involves describing the data collected in the study
sample
Inferential statistics ✔Correct Answer-involves generating inferences about population
parameters based on estimates derived from the study sample.
Discrete variables ✔Correct Answer-*variables that assume only a finite number of values
*Ex. whether or not a participant is taking lipid lowering treatment (yes or no), their blood type
(A, B, AB or O), or symptom severity (none, mild, moderate, or severe).
Dichotomous ✔Correct Answer-Discrete variables with two response options
Categorical/nominal ✔Correct Answer-discrete variables with more than 2 unordered
response options
Ordinal variables ✔Correct Answer-discrete variables with more than 2 ordered response
options
Continuous variables (quantitative) ✔Correct Answer-*can take on any value within a range of
plausible values.
*Ex. total serum cholesterol level, height, weight and systolic blood pressure
Answers |Latest Version |Already Graded A+
Biostatistics definition: ✔Correct Answer-The development and application of statistical
reasoning and methods in addressing, analyzing, and solving problems in public health, health
care, biomedical, clinical, and population-based research.
Population ✔Correct Answer-the collection of all units (usually people) that we wish to make
inferences about.
Sample ✔Correct Answer-a subset of the population
Bias ✔Correct Answer-*a systematic error in a study that leads to uncertainty about the
estimates generated from the study.
*actually caused by the investigators in the design or conduct of the study
Paramaters ✔Correct Answer-Summary measures based on population data
Statistics ✔Correct Answer-estimates derived from sample data
Descriptive statistics ✔Correct Answer-involves describing the data collected in the study
sample
Inferential statistics ✔Correct Answer-involves generating inferences about population
parameters based on estimates derived from the study sample.
Discrete variables ✔Correct Answer-*variables that assume only a finite number of values
*Ex. whether or not a participant is taking lipid lowering treatment (yes or no), their blood type
(A, B, AB or O), or symptom severity (none, mild, moderate, or severe).
Dichotomous ✔Correct Answer-Discrete variables with two response options
Categorical/nominal ✔Correct Answer-discrete variables with more than 2 unordered
response options
Ordinal variables ✔Correct Answer-discrete variables with more than 2 ordered response
options
Continuous variables (quantitative) ✔Correct Answer-*can take on any value within a range of
plausible values.
*Ex. total serum cholesterol level, height, weight and systolic blood pressure
