Statistics Portage CNSL 503 Exam 2
Complete Questions And Answers
/.frequency distribution - Answer-presents the frequency of every value in a dataset
/.frequency tables - Answer-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? - Answer-one column
represents the category, the other column represents the frequency
/.absolute frequency - Answer-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?"? - Answer-relative frequency
/.relative frequency - Answer-the ratio between the absolute frequency of a category
and the total frequency
/.formula for relative frequency - Answer-frequency in category/total frequency
/.What type of frequency do you use when answering the question "how many students
scored a B or better?"? - Answer-cumulative frequency
/.cumulative frequency - Answer-the sum of frequencies of all preceding categories
/.Frequency tables can be used for what type of variables? - Answer-qualitative or
quantitative variables
/.When using frequency tables for quantitative variables, group the quantitative scores
into groups called what? - Answer-bins
/.frequency graphs - Answer-pie charts, bar charts, histograms, frequency polygons,
stem and leaf plots
/.What type of frequency graphs are used for qualitative variables? - Answer-pie charts
and bar charts
/.What type of frequency graphs are used for quantitative variables? - Answer-
histograms, frequency polygons and stem and leaf plots
, /.pie charts - Answer-displays relative frequencies (and not necessarily absolute
frequencies) of each category for qualitative variables in a pie
/.Each portion of a pie represents... - Answer-a different category
/.The size of each portion is proportional to... - Answer-the relative frequency of that
category
/.The entire pie represents... - Answer-100% of the scores
/.Pie charts are good to visualize... - Answer-frequencies
/.Pie charts are only useful for... - Answer-small number of categories
/.bar charts/bar graphs - Answer-display absolute and relative frequencies of qualitative
data using bars
/.Each bar represents a - Answer-category
/.The height of a bar represents... - Answer-the frequency
/.Do the bars touch in a bar graph? - Answer-no
/.histograms - Answer-displays absolute and relative frequencies of quantitative data
using bars
/.Each bar represents... - Answer-a category
/.The height of the bar represents... - Answer-the freuqeuncy
/.Do the bars in a histogram touch? - Answer-yes
/.The width of the bars represent... - Answer-the size of the range of values
/.frequency polygons - Answer-display absolute and relative frequencies of quantitative
data using dots and lines
/.Each dot is placed... - Answer-above the score an the height of the frequency
/.The dots are connected with a line that begins and ends at... - Answer-zero frequency
/.stem and leaf plot - Answer-display frequencies of quantitative data, particularly when
the dataset is small
/.The stem represents... - Answer-the first digits of the score
Complete Questions And Answers
/.frequency distribution - Answer-presents the frequency of every value in a dataset
/.frequency tables - Answer-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? - Answer-one column
represents the category, the other column represents the frequency
/.absolute frequency - Answer-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?"? - Answer-relative frequency
/.relative frequency - Answer-the ratio between the absolute frequency of a category
and the total frequency
/.formula for relative frequency - Answer-frequency in category/total frequency
/.What type of frequency do you use when answering the question "how many students
scored a B or better?"? - Answer-cumulative frequency
/.cumulative frequency - Answer-the sum of frequencies of all preceding categories
/.Frequency tables can be used for what type of variables? - Answer-qualitative or
quantitative variables
/.When using frequency tables for quantitative variables, group the quantitative scores
into groups called what? - Answer-bins
/.frequency graphs - Answer-pie charts, bar charts, histograms, frequency polygons,
stem and leaf plots
/.What type of frequency graphs are used for qualitative variables? - Answer-pie charts
and bar charts
/.What type of frequency graphs are used for quantitative variables? - Answer-
histograms, frequency polygons and stem and leaf plots
, /.pie charts - Answer-displays relative frequencies (and not necessarily absolute
frequencies) of each category for qualitative variables in a pie
/.Each portion of a pie represents... - Answer-a different category
/.The size of each portion is proportional to... - Answer-the relative frequency of that
category
/.The entire pie represents... - Answer-100% of the scores
/.Pie charts are good to visualize... - Answer-frequencies
/.Pie charts are only useful for... - Answer-small number of categories
/.bar charts/bar graphs - Answer-display absolute and relative frequencies of qualitative
data using bars
/.Each bar represents a - Answer-category
/.The height of a bar represents... - Answer-the frequency
/.Do the bars touch in a bar graph? - Answer-no
/.histograms - Answer-displays absolute and relative frequencies of quantitative data
using bars
/.Each bar represents... - Answer-a category
/.The height of the bar represents... - Answer-the freuqeuncy
/.Do the bars in a histogram touch? - Answer-yes
/.The width of the bars represent... - Answer-the size of the range of values
/.frequency polygons - Answer-display absolute and relative frequencies of quantitative
data using dots and lines
/.Each dot is placed... - Answer-above the score an the height of the frequency
/.The dots are connected with a line that begins and ends at... - Answer-zero frequency
/.stem and leaf plot - Answer-display frequencies of quantitative data, particularly when
the dataset is small
/.The stem represents... - Answer-the first digits of the score
