1 | P a g e | © copyright 2024/2025 | Grade A+
BUAL 2600 - Exam 2 - Gramling
Questions and Answers 2024/2025
Measures Central Tendency
✓ Mean, Median, Mode
Measures of Variation
✓ STD Deviation & Variance; Range & IQR
Measures of Position
✓ Quartiles, Percentiles, Z‐Scores
Central Tendency
✓ A measure of central tendency represents the center or middle of the
data
Population Parameter
✓ a number calculated from all the population measurements that
describes some aspect of the population
Population Mean (μ)
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
✓ is average of the population measurements and most of the time is
unknown
Sample Statistic
✓ a number calculated using the sample measurements that describes
some aspect of the sample
Sample Mean
✓ (𝑥̅ or 𝑎𝑛𝑦 𝑣𝑎𝑟𝑖𝑎𝑏𝑙𝑒 𝑛𝑎𝑚𝑒) is the average of the sample data
Median
✓ The value of the middle point of the ordered measurements.
For the Median data _________ in numerical order.
✓ MUST BE
The mode measures what type of data?
✓ -Qualitative data
✓ -It is the ONLY Central tendency measure for qualitative data
Mode
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
✓ The most frequent value for qualitative categories OR quantitative
single values
Outliers
✓ -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?
✓ Outliers that are much larger than majority of the other data points
What type of outliers cause the date to be LEFT SKEWED?
✓ Outliers that are much smaller than most of the other data points
How do you find the mean?
✓
How do you find the mode?
✓
How do you find the median?
Master01 | September, 2024/2025 | Latest update
BUAL 2600 - Exam 2 - Gramling
Questions and Answers 2024/2025
Measures Central Tendency
✓ Mean, Median, Mode
Measures of Variation
✓ STD Deviation & Variance; Range & IQR
Measures of Position
✓ Quartiles, Percentiles, Z‐Scores
Central Tendency
✓ A measure of central tendency represents the center or middle of the
data
Population Parameter
✓ a number calculated from all the population measurements that
describes some aspect of the population
Population Mean (μ)
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
✓ is average of the population measurements and most of the time is
unknown
Sample Statistic
✓ a number calculated using the sample measurements that describes
some aspect of the sample
Sample Mean
✓ (𝑥̅ or 𝑎𝑛𝑦 𝑣𝑎𝑟𝑖𝑎𝑏𝑙𝑒 𝑛𝑎𝑚𝑒) is the average of the sample data
Median
✓ The value of the middle point of the ordered measurements.
For the Median data _________ in numerical order.
✓ MUST BE
The mode measures what type of data?
✓ -Qualitative data
✓ -It is the ONLY Central tendency measure for qualitative data
Mode
Master01 | September, 2024/2025 | Latest update
, 1 | P a g e | © copyright 2024/2025 | Grade A+
✓ The most frequent value for qualitative categories OR quantitative
single values
Outliers
✓ -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?
✓ Outliers that are much larger than majority of the other data points
What type of outliers cause the date to be LEFT SKEWED?
✓ Outliers that are much smaller than most of the other data points
How do you find the mean?
✓
How do you find the mode?
✓
How do you find the median?
Master01 | September, 2024/2025 | Latest update
