CNSL 503: A GUIDE TO A+. QUESTIONS AND ANSWERS
FORMAT.LATEST UPDATE
frequency distribution
presents the frequency of every value in a dataset
frequency tables
displays the number of times (ex: frequency) a certain value appears within the dataset in a table format
What does each column represent in frequency tables?
one column represents the category, the other column represents the frequency
absolute frequency
raw count
What type of frequency do you use when answering " how many student out of the total number of
students scored a letter grade?"?
relative frequency
relative frequency
the ratio between the absolute frequency of a category and the total frequency
formula for relative frequency
frequency in category/total frequency
What type of frequency do you use when answering the question "how many students scored a B or
better?"?
cumulative frequency
cumulative frequency
the sum of frequencies of all preceding categories
Frequency tables can be used for what type of variables?
qualitative or quantitative variables
When using frequency tables for quantitative variables, group the quantitative scores into groups
called what?
bins
frequency graphs
pie charts, bar charts, histograms, frequency polygons, stem and leaf plots
, What type of frequency graphs are used for qualitative variables?
pie charts and bar charts
What type of frequency graphs are used for quantitative variables?
histograms, frequency polygons and stem and leaf plots
pie charts
displays relative frequencies (and not necessarily absolute frequencies) of each category for qualitative
variables in a pie
Each portion of a pie represents...
a different category
The size of each portion is proportional to...
the relative frequency of that category
The entire pie represents...
100% of the scores
Pie charts are good to visualize...
frequencies
Pie charts are only useful for...
small number of categories
bar charts/bar graphs
display absolute and relative frequencies of qualitative data using bars
Each bar represents a
category
The height of a bar represents...
the frequency
Do the bars touch in a bar graph?
no
histograms
displays absolute and relative frequencies of quantitative data using bars
Each bar represents...
a category
FORMAT.LATEST UPDATE
frequency distribution
presents the frequency of every value in a dataset
frequency tables
displays the number of times (ex: frequency) a certain value appears within the dataset in a table format
What does each column represent in frequency tables?
one column represents the category, the other column represents the frequency
absolute frequency
raw count
What type of frequency do you use when answering " how many student out of the total number of
students scored a letter grade?"?
relative frequency
relative frequency
the ratio between the absolute frequency of a category and the total frequency
formula for relative frequency
frequency in category/total frequency
What type of frequency do you use when answering the question "how many students scored a B or
better?"?
cumulative frequency
cumulative frequency
the sum of frequencies of all preceding categories
Frequency tables can be used for what type of variables?
qualitative or quantitative variables
When using frequency tables for quantitative variables, group the quantitative scores into groups
called what?
bins
frequency graphs
pie charts, bar charts, histograms, frequency polygons, stem and leaf plots
, What type of frequency graphs are used for qualitative variables?
pie charts and bar charts
What type of frequency graphs are used for quantitative variables?
histograms, frequency polygons and stem and leaf plots
pie charts
displays relative frequencies (and not necessarily absolute frequencies) of each category for qualitative
variables in a pie
Each portion of a pie represents...
a different category
The size of each portion is proportional to...
the relative frequency of that category
The entire pie represents...
100% of the scores
Pie charts are good to visualize...
frequencies
Pie charts are only useful for...
small number of categories
bar charts/bar graphs
display absolute and relative frequencies of qualitative data using bars
Each bar represents a
category
The height of a bar represents...
the frequency
Do the bars touch in a bar graph?
no
histograms
displays absolute and relative frequencies of quantitative data using bars
Each bar represents...
a category
