PAPER QUESTIONS AND SOLUTIONS
VERIFIED ANSWERS
●● 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