2026) Applied Healthcare Statistics | Module 5|
Questions and Answers | Grade A | 100% Correct –
WG
1. What is a negative correlation?
ANS When two quantitative variables move in opposite directions; as the explanatory
variable increases, the response variable decreases
2. What is a two-way frequency table?
ANS A table that contains frequency counts for two categorical variables, also called a
contingency table
3. What is a non-linear expression or equation?
ANS An expression or equation that is illustrated by something other than a straight
line
4. What is a coordinate plane?
1
, ANS A tool used for graphing, consisting of an x-axis (horizontal number line) and y-
axis (vertical number line) meeting at the origin (0, 0)
5. What is a cluster in a data set?
ANS Several points grouped together away from the majority of points in a data set
6. What is a linear expression or equation?
ANS An expression or equation of degree 1
7. What is an explanatory variable?
ANS The variable that may be the cause of some result, also called an independent
variable
8. What are joint frequencies?
ANS The frequency counts in each cell of a contingency table
9. What is a box plot?
ANS A graphical rendering of the range, first and third quartiles, and median of a data
set
10. What is a correlation?
2