Statistics and Epidemiology

Question 1

The term for an overview of all distinct values in some variable and the number of times they occur is

Answer 1

Frequency distributions

Question 2

What determines if there is a sufficient sample size to conduct a study?

Answer 2

Preparatory research

Question 3

What is used to compare descriptive values between two populations or samples to determine whether the population differs in a meaningful way?

Answer 3

inferential statistics

Question 4

What is most effective when comparing size or magnitude of a variable across one or more categories?

Answer 4

Bar charts

Question 5

Whose role is to provide data to researchers and administrators for analysis and interpretation?

Answer 5

Cancer Registrar

Question 6

Because exact values and comparisons among several variables are often easier to interpret graphically, which of these representations would you use to present and summarize details that would be cumbersome in a narrative form?

Answer 6

Tables

Question 7

Which element of the epidemiological triad of disease is the biological cause of the disease process?

Answer 7

Agent

Question 8

In order to facilitate comparisons, state and regional cancer registries in the United States publish what type of rates?

Answer 8

Age-adjusted

Question 9

What is used to approximate the main measure of excess risk in epidemiological studies?

Answer 9

standardized incidence ratio

Question 10

What describes the average relative distance of each point in the data set from the mean?

Answer 10

variance

Question 11

What includes measures of central tendency and variation or spread of the data?

Answer 11

common descriptive statistics

Question 12

Which statistical software is a language and environment for statistical computing and graphics which is popular with statisticians?

Answer 12

Referred to as R, R Project for Statistical Computing