BUAL 2600 - Exam 2 – Gramling || QUESTIONS WITH
A+ GRADED SOLUTIONS!
Measures Central Tendency correct answers Mean, Median, Mode
Measures of Variation correct answers STD Deviation & Variance; Range & IQR
Measures of Position correct answers Quartiles, Percentiles, Z‐Scores
Central Tendency correct answers A measure of central tendency represents the center or middle
of the data
Population Parameter correct answers a number calculated from all the population measurements
that describes some aspect of the population
Population Mean (μ) correct answers is average of the population measurements and most of the
time is unknown
Sample Statistic correct answers a number calculated using the sample measurements that
describes some aspect of the sample
Sample Mean correct answers (𝑥̅ or 𝑎𝑛𝑦 𝑣𝑎𝑟𝑖𝑎𝑏𝑙𝑒 𝑛𝑎𝑚𝑒) is the average of the sample data
Median correct answers The value of the middle point of the ordered measurements.
For the Median data _________ in numerical order. correct answers MUST BE
The mode measures what type of data? correct answers -Qualitative data
-It is the ONLY Central tendency measure for qualitative data
Mode correct answers The most frequent value for qualitative categories OR quantitative single
values
Outliers correct answers -are measurements that are very different from other measurements
-either much larger or much smaller than most of the other measurements
What type of outliers cause the data to be RIGHT SKEWED? correct answers Outliers that are
much larger than majority of the other data points
What type of outliers cause the date to be LEFT SKEWED? correct answers Outliers that are
much smaller than most of the other data points
How do you find the mean? correct answers
How do you find the mode? correct answers
, How do you find the median? correct answers
Left or Negatively Skewed Date correct answers
Normal Distribution correct answers
Right or Positively Skewed correct answers
Starting Here Based off Exam Review correct answers
Reports correct answers -Static Visuals or Graphs
-Offers snapshot of historic data
-Can be produced using Microsoft Office (e.g Word or Excel)
Dashboard correct answers -Dynamic (interactive)
-Includes multiple data points/datasets on the present (real time)
-Can include tracking in real time
-Requires special software
What is a Dashboard? correct answers A Data Visualization Tool customized and tailored to
what a business needs to see
What does a Dashboard allow businesses to do? correct answers visualize key performance
indicators, track their business operations by the minute, daily, or over time
What is a Business Intelligence (BI) Dashboard? correct answers -A special type of Dashboard in
business
-displays on a single screen the status of business metrics, key performance indicators and other
important data points for an organization or team, or a business process
What to look for on a dashboard? correct answers -Provide dynamic, real-time, real-world view
of the data with timely data refreshes; enables user to stay up to date of recent changes in the
business
-Visuals (e.g. charts, performance bars, gauges, meters) to highlight at a glance the data trends,
tracking over time, or outstanding points
-Think about the panel in your vehicle (gas level, mileage, tire pressure)•
-Transparent to the user - require minimal training to use (no programming)
-Data from a variety of sources into a single, summarized, unified snapshot of the business
-Enable user to "drill-down" to underlying data sources or reports to provide more
detailExamples
What does a dashboard look like? correct answers
How to create a Dashboard via Tableau correct answers
A+ GRADED SOLUTIONS!
Measures Central Tendency correct answers Mean, Median, Mode
Measures of Variation correct answers STD Deviation & Variance; Range & IQR
Measures of Position correct answers Quartiles, Percentiles, Z‐Scores
Central Tendency correct answers A measure of central tendency represents the center or middle
of the data
Population Parameter correct answers a number calculated from all the population measurements
that describes some aspect of the population
Population Mean (μ) correct answers is average of the population measurements and most of the
time is unknown
Sample Statistic correct answers a number calculated using the sample measurements that
describes some aspect of the sample
Sample Mean correct answers (𝑥̅ or 𝑎𝑛𝑦 𝑣𝑎𝑟𝑖𝑎𝑏𝑙𝑒 𝑛𝑎𝑚𝑒) is the average of the sample data
Median correct answers The value of the middle point of the ordered measurements.
For the Median data _________ in numerical order. correct answers MUST BE
The mode measures what type of data? correct answers -Qualitative data
-It is the ONLY Central tendency measure for qualitative data
Mode correct answers The most frequent value for qualitative categories OR quantitative single
values
Outliers correct answers -are measurements that are very different from other measurements
-either much larger or much smaller than most of the other measurements
What type of outliers cause the data to be RIGHT SKEWED? correct answers Outliers that are
much larger than majority of the other data points
What type of outliers cause the date to be LEFT SKEWED? correct answers Outliers that are
much smaller than most of the other data points
How do you find the mean? correct answers
How do you find the mode? correct answers
, How do you find the median? correct answers
Left or Negatively Skewed Date correct answers
Normal Distribution correct answers
Right or Positively Skewed correct answers
Starting Here Based off Exam Review correct answers
Reports correct answers -Static Visuals or Graphs
-Offers snapshot of historic data
-Can be produced using Microsoft Office (e.g Word or Excel)
Dashboard correct answers -Dynamic (interactive)
-Includes multiple data points/datasets on the present (real time)
-Can include tracking in real time
-Requires special software
What is a Dashboard? correct answers A Data Visualization Tool customized and tailored to
what a business needs to see
What does a Dashboard allow businesses to do? correct answers visualize key performance
indicators, track their business operations by the minute, daily, or over time
What is a Business Intelligence (BI) Dashboard? correct answers -A special type of Dashboard in
business
-displays on a single screen the status of business metrics, key performance indicators and other
important data points for an organization or team, or a business process
What to look for on a dashboard? correct answers -Provide dynamic, real-time, real-world view
of the data with timely data refreshes; enables user to stay up to date of recent changes in the
business
-Visuals (e.g. charts, performance bars, gauges, meters) to highlight at a glance the data trends,
tracking over time, or outstanding points
-Think about the panel in your vehicle (gas level, mileage, tire pressure)•
-Transparent to the user - require minimal training to use (no programming)
-Data from a variety of sources into a single, summarized, unified snapshot of the business
-Enable user to "drill-down" to underlying data sources or reports to provide more
detailExamples
What does a dashboard look like? correct answers
How to create a Dashboard via Tableau correct answers
