STATISTICS MODULE 2 EXAM
QUESTIONS WITH COMPLETE
SOLUTIONS 2025
Visual representations of datasets make it easier to ____ - ANSWERsummarize 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 - ANSWERFrequency tables
The ___ frequency is the exact number of times each variable appears in a dataset -
ANSWERabsolute frequency
The ___ frequency is the ratio of the frequency of a specific variable in relation to the
total number of frequencies in the dataset. - ANSWERrelative frequency
The ___ frequency is the sum of all proceeding categories - ANSWERcumulative
With quantitative data and the wider range of values available, a ____ table presents
data more concisely in bins. - ANSWERgrouped 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. - ANSWERBins
___ charts are used to display relative frequency of each value within a qualitative or
categorical dataset - ANSWERPie charts
Pie charts are less effective because - ANSWERif 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. - ANSWERBar
The advantage of a bar chart over a pie chart is - ANSWERThat 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. - ANSWERHistogram
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. -
ANSWERFrequency polygon
In a frequency polygon, if data is grouped, the dot is placed - ANSWERdiretly above the
midpoint of the interval
The shape depicted in frequency polygons can help you predict - ANSWERtrends 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 -
ANSWERstem and leaf plot
A stem and leaf plot is beneficial because - ANSWEReach 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 - ANSWERThree dimensional graph
Qualitative data is represented in __ and__ , The more commonly used is the __. -
ANSWERPie chart and bar graph, more commonly used is bar graph
Quantitative data is represented in __, __, and__ - ANSWERhistograms, frequency
polygons, box plots, and stem and leaf plots
A __ is the value appearing most frequently in a dataset - ANSWERmode
Number of peaks in a graph represent a _ distribution:
0-
1-
2-
3-
2+ - - ANSWER0 - uniform
1 - unimodal
2 - bimodal
3 - trimodal
2+ - multimodal
In a symmetrical distribution, the relationship between mean, median and mode is -
ANSWERmean = median = mode
In a ___ distribution, the values are concentrated on right/left - ANSWERskewed
QUESTIONS WITH COMPLETE
SOLUTIONS 2025
Visual representations of datasets make it easier to ____ - ANSWERsummarize 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 - ANSWERFrequency tables
The ___ frequency is the exact number of times each variable appears in a dataset -
ANSWERabsolute frequency
The ___ frequency is the ratio of the frequency of a specific variable in relation to the
total number of frequencies in the dataset. - ANSWERrelative frequency
The ___ frequency is the sum of all proceeding categories - ANSWERcumulative
With quantitative data and the wider range of values available, a ____ table presents
data more concisely in bins. - ANSWERgrouped 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. - ANSWERBins
___ charts are used to display relative frequency of each value within a qualitative or
categorical dataset - ANSWERPie charts
Pie charts are less effective because - ANSWERif 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. - ANSWERBar
The advantage of a bar chart over a pie chart is - ANSWERThat 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. - ANSWERHistogram
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. -
ANSWERFrequency polygon
In a frequency polygon, if data is grouped, the dot is placed - ANSWERdiretly above the
midpoint of the interval
The shape depicted in frequency polygons can help you predict - ANSWERtrends 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 -
ANSWERstem and leaf plot
A stem and leaf plot is beneficial because - ANSWEReach 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 - ANSWERThree dimensional graph
Qualitative data is represented in __ and__ , The more commonly used is the __. -
ANSWERPie chart and bar graph, more commonly used is bar graph
Quantitative data is represented in __, __, and__ - ANSWERhistograms, frequency
polygons, box plots, and stem and leaf plots
A __ is the value appearing most frequently in a dataset - ANSWERmode
Number of peaks in a graph represent a _ distribution:
0-
1-
2-
3-
2+ - - ANSWER0 - uniform
1 - unimodal
2 - bimodal
3 - trimodal
2+ - multimodal
In a symmetrical distribution, the relationship between mean, median and mode is -
ANSWERmean = median = mode
In a ___ distribution, the values are concentrated on right/left - ANSWERskewed
