BQA 3123 Iva Ballard Exam 1 Questions and
Answers
central tendency -
correct answer ✅a statistical measure to determine a single score
that defines the center of a distribution; the most typical or most
representative value
Mean -
correct answer ✅The average of a set of numbers
Median -
correct answer ✅the middle score in a distribution; half the scores
are above it and half are below it
Mode -
correct answer ✅the most frequently occurring score(s) in a
distribution;
Issues with mean -
correct answer ✅Can be influenced by outliers
Issues with Mode -
correct answer ✅Some data sets may not have one. Can be
influenced by outliers
, BQA 3123 Iva Ballard Exam 1 Questions and
Answers
Range -
correct answer ✅measure of variability, spread, dispersion
Max-Min
Limitations of Range -
correct answer ✅only uses Minimum and Maximum values.
Considers only 2 values
Two reasons to use a Z-Score -
correct answer ✅-Tells you the exact location of the raw score
within distribution
-Allows us to compare with other distributions due to
standardization
Properties of Z-Scores -
correct answer ✅-The shape of the distribution of the z-score will
be the same as the shape of the distribution of the raw scores
-Mean on z-scores = 0
-Standard Deviation = 1
Answers
central tendency -
correct answer ✅a statistical measure to determine a single score
that defines the center of a distribution; the most typical or most
representative value
Mean -
correct answer ✅The average of a set of numbers
Median -
correct answer ✅the middle score in a distribution; half the scores
are above it and half are below it
Mode -
correct answer ✅the most frequently occurring score(s) in a
distribution;
Issues with mean -
correct answer ✅Can be influenced by outliers
Issues with Mode -
correct answer ✅Some data sets may not have one. Can be
influenced by outliers
, BQA 3123 Iva Ballard Exam 1 Questions and
Answers
Range -
correct answer ✅measure of variability, spread, dispersion
Max-Min
Limitations of Range -
correct answer ✅only uses Minimum and Maximum values.
Considers only 2 values
Two reasons to use a Z-Score -
correct answer ✅-Tells you the exact location of the raw score
within distribution
-Allows us to compare with other distributions due to
standardization
Properties of Z-Scores -
correct answer ✅-The shape of the distribution of the z-score will
be the same as the shape of the distribution of the raw scores
-Mean on z-scores = 0
-Standard Deviation = 1
