Questions (Frequently Tested) with
Verified Answers
Visual representations of datasets make it easier to ____ - Answer: summarize and interpret
results
___ tables display the number of times a certain value appears within their dataset and can be
extended to show number of each occurrence in relation to total number of occurrences -
Answer: Frequency tables
The ___ frequency is the exact number of times each variable appears in a dataset - Answer:
absolute frequency
The ___ frequency is the ratio of the frequency of a specific variable in relation to the total
number of frequencies in the dataset. - Answer: relative frequency
The ___ frequency is the sum of all proceeding categories - Answer: cumulative
With quantitative data and the wider range of values available, a ____ table presents data more
concisely in bins. - Answer: grouped frequency distribution table
___ are defined as a range of scores grouped together in sets, and the number of scores that fall
within that range is calculated. - Answer: Bins
___ charts are used to display relative frequency of each value within a qualitative or categorical
dataset - Answer: Pie charts
, Pie charts are less effective because - Answer: if a large number of categories exist in a dataset it
is less easily interpreted and the frequency is not displayed.
__ charts represent the frequency of each value with qualitative data, with the set of bars used
to display frequency of each category. The height of the bar corresponds ot the number of
frequency. The bars do not touch each other as each value is a distinct category. - Answer: Bar
The advantage of a bar chart over a pie chart is - Answer: That is shows relative frequency and
frequency and is able to show a wider range of values.
A ___ uses bars to represent the frequency of quantitative data. The height of each bar
represents the frequency, as bars usually touch as it represents a range of continuous, rather
than discrete scores. The width of the bars represents the size of the range of values contained
within that bar. - Answer: Histogram
A ___ is a line graph used to represent values from an interval or ratio scale. The frequency of
each category is represented by a dot rather than bar. - Answer: Frequency polygon
In a frequency polygon, if data is grouped, the dot is placed - Answer: diretly above the
midpoint of the interval
The shape depicted in frequency polygons can help you predict - Answer: trends in data values
A ___ represents quantitative data in smaller sets by showing a table of values whereby the first
digit (or digits) represent the stem and the last digit represents a leaf - Answer: stem and leaf
plot
A stem and leaf plot is beneficial because - Answer: each data point is represented and you can
clearly see groupings