WGU C955 - Module 5 Flashcards Exam
Questions and Answers
five-number summary - Answer-The minimum, first quartile, median, third quartile, and
the maximum. A box plot represents the five numbers in a five-number summary.
two-way frequency table - Answer-A table that contains frequency counts for two
categorical variables. [See also contingency table]
joint frequencies - Answer-The frequency counts in each cell of the table.
contingency table - Answer-A table that contains frequency counts for two categorical
variables. [See also two-way frequency table]
linear - Answer-An expression or equation of degree 1.
response variable - Answer-The variable that is obtained as a result, or the response
that gets measured or observed. Also called a Dependent variable.
conditional percentages - Answer-A way to approximate a percentage by dividing the
number of times an event occurred in an experiment by the total number of respondents
in that row or column. See relative frequency.
negative correlation - Answer-When two quantitative variables move in opposite
directions: as the explanatory variable increases the response variable decreases.
coordinate plane - Answer-A tool used for graphing that is a display of a two-
dimensional plane. It consists of an x-axis and a y-axis; the x-axis being a horizontal
number line, the y-axis is a vertical number line, and the axes meet at the origin (0, 0).
positive correlation - Answer-When two quantitative variables move in the same
direction; the response variable increases when the explanatory variable increases.
independent variable - Answer-The variable that may be the cause of some result, or is
presented as variable that offers an explanation. Also called an explanatory variable.
ordered pair - Answer-Two numbers written in the form (x,y), where x represents the x-
value or x-coordinate, and y represents the y-value or y-coordinate.
correlation - Answer-An observed relationship between two quantitative variables. While
this is most commonly a linear relationship, it does not need to be.
Questions and Answers
five-number summary - Answer-The minimum, first quartile, median, third quartile, and
the maximum. A box plot represents the five numbers in a five-number summary.
two-way frequency table - Answer-A table that contains frequency counts for two
categorical variables. [See also contingency table]
joint frequencies - Answer-The frequency counts in each cell of the table.
contingency table - Answer-A table that contains frequency counts for two categorical
variables. [See also two-way frequency table]
linear - Answer-An expression or equation of degree 1.
response variable - Answer-The variable that is obtained as a result, or the response
that gets measured or observed. Also called a Dependent variable.
conditional percentages - Answer-A way to approximate a percentage by dividing the
number of times an event occurred in an experiment by the total number of respondents
in that row or column. See relative frequency.
negative correlation - Answer-When two quantitative variables move in opposite
directions: as the explanatory variable increases the response variable decreases.
coordinate plane - Answer-A tool used for graphing that is a display of a two-
dimensional plane. It consists of an x-axis and a y-axis; the x-axis being a horizontal
number line, the y-axis is a vertical number line, and the axes meet at the origin (0, 0).
positive correlation - Answer-When two quantitative variables move in the same
direction; the response variable increases when the explanatory variable increases.
independent variable - Answer-The variable that may be the cause of some result, or is
presented as variable that offers an explanation. Also called an explanatory variable.
ordered pair - Answer-Two numbers written in the form (x,y), where x represents the x-
value or x-coordinate, and y represents the y-value or y-coordinate.
correlation - Answer-An observed relationship between two quantitative variables. While
this is most commonly a linear relationship, it does not need to be.
