BUAL 2600 - Exam 2 – Gramling Questions and Answers
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Practice questions for this set
2
3
Don't know?
Terms in this set (80)
Measures Central Tendency Mean, Median, Mode
Measures of Variation STD Deviation & Variance; Range & IQR
Measures of Position Quartiles, Percentiles, Z‐Scores
A measure of central tendency represents the center or middle of
Central Tendency
the data
a number calculated from all the population measurements that
Population Parameter
describes some aspect of the population
is average of the population measurements and most of the time is
Population Mean (μ)
unknown
a number calculated using the sample measurements that describes
Sample Statistic
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 MUST BE
numerical order.
, The mode measures what type of -Qualitative data
data? -It is the ONLY Central tendency measure for qualitative data
The most frequent value for qualitative categories OR quantitative
Mode
single values
-are measurements that are very different from other measurements
Outliers -either much larger or much smaller than most of the other
measurements
What type of outliers cause the Outliers that are much larger than majority of the other data points
data to be RIGHT SKEWED?
What type of outliers cause the Outliers that are much smaller than most of the other data points
date to be LEFT SKEWED?
How do you find the mean?
How do you find the mode?
How do you find the median?
Left or Negatively Skewed Date
Normal Distribution
Right or Positively Skewed
Latest Update
Practice questions for this set
2
3
Don't know?
Terms in this set (80)
Measures Central Tendency Mean, Median, Mode
Measures of Variation STD Deviation & Variance; Range & IQR
Measures of Position Quartiles, Percentiles, Z‐Scores
A measure of central tendency represents the center or middle of
Central Tendency
the data
a number calculated from all the population measurements that
Population Parameter
describes some aspect of the population
is average of the population measurements and most of the time is
Population Mean (μ)
unknown
a number calculated using the sample measurements that describes
Sample Statistic
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 MUST BE
numerical order.
, The mode measures what type of -Qualitative data
data? -It is the ONLY Central tendency measure for qualitative data
The most frequent value for qualitative categories OR quantitative
Mode
single values
-are measurements that are very different from other measurements
Outliers -either much larger or much smaller than most of the other
measurements
What type of outliers cause the Outliers that are much larger than majority of the other data points
data to be RIGHT SKEWED?
What type of outliers cause the Outliers that are much smaller than most of the other data points
date to be LEFT SKEWED?
How do you find the mean?
How do you find the mode?
How do you find the median?
Left or Negatively Skewed Date
Normal Distribution
Right or Positively Skewed
