CNSL 503/CNSL 503 Module 2 Statistics Actual
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__ 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
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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
___ are created via tech and stats programs to represent
data measured on three different axes - Answer-Three
dimensional graph
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Qualitative data is represented in __ and__ , The more
commonly used is the __. - Answer-Pie chart and bar
graph, more commonly used is bar graph
Quantitative data is represented in __, __, and__ -
Answer-histograms, frequency polygons, box plots, and
stem and leaf plots
A __ is the value appearing most frequently in a dataset -
Answer-mode
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
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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.
Number of peaks in a graph represent a _ distribution: