STATISTICS PORTAGE CNSL 503
EXAM 2 QUESTIONS AND ANSWERS
100% ACCURATE
Question: What is a frequency distribution?
Correct answer: Presents the frequency of every value in a
dataset
Question: What are frequency tables?
Correct answer: Displays the number of times (ex: frequency) a certain value appears within the dataset in a table format
Question: What does each column represent in frequency
tables?
Correct answer: One column represents the category, the
other column represents the frequency
Question: What is absolute frequency?
Correct answer: Raw count
Question: What type of frequency do you use when answering
"how many students out of the total number of students scored a letter grade?"?
Correct answer: Relative frequency
Question: What is relative frequency?
Correct answer: The ratio between the absolute frequency of a
category and the total frequency
Question: What is the formula for relative frequency?
Correct answer: Frequency in category/total frequency
Question: What type of frequency do you use when answering
the question "how many students scored a B or better?"?
Correct answer: Cumulative frequency
Question: What is cumulative frequency?
Correct answer: The sum of frequencies of all preceding
categories
Question: Frequency tables can be used for what type of
variables?
Correct answer: Qualitative or quantitative variables
Question: When using frequency tables for quantitative
variables, group the quantitative scores into groups called what?
Correct answer: Bins
Question: What are frequency graphs?
Correct answer: Pie charts, bar charts, histograms, frequency
polygons, stem and leaf plots
Question: What type of frequency graphs are used for
qualitative variables?
Correct answer: Pie charts and bar charts
Question: What type of frequency graphs are used for
quantitative variables?
Correct answer: Histograms, frequency polygons and stem
and leaf plots
Question: What are pie charts?
Correct answer: Displays relative frequencies (and not
necessarily absolute frequencies) of each category for qualitative variables in a pie