1|Page
QTM 100 Final Emory |Latest 2025 Update with
complete solution.
anecdotal evidence - (answers)data collected in a haphazard fashion
descriptive statistics - (answers)used to summarize the collected data through
numbers such as averages and percentages; measures of central tendency and
measures of variability
inferential statistics - (answers)used to draw conclusions about a population,
based on the data obtained from a sample of the problem; bimodal/normal
distribution, hypothesis testing, central limit theorem, confidence interval,
regressions
population - (answers)the set of all subjects of interests
sample - (answers)the subset of the population of interest on which you collect
data
statistic - (answers)a numerical summary of a sample (x,s)
parameter - (answers)numerical summary of a population (μ,σ)
random sampling - (answers)a method of poll selection that gives each person in
a group the same chance of being selected
, 2|Page
categorical variables - (answers)a variable that names categories (descriptive
words or phrases)
dichotomous variable - (answers)a nominal variable that consists of two
categories (gender)
ordinal variable - (answers)a qualitative variable that incorporates an ordered
position, or ranking (freshmen, sophomore, junior, senior)
frequency - (answers)the number of observations in each category
percent - (answers)A ratio that compares a number to 100
proportion - (answers)the number of observations in each category divided by the
total number of observations
modal category - (answers)the category with the highest frequency
quantitative variables - (answers)a variable that takes on numeric values
continuous variable - (answers)a quantitative variable that has an infinite number
of possible values that are not countable (9.63,9.75,9.79...)
QTM 100 Final Emory |Latest 2025 Update with
complete solution.
anecdotal evidence - (answers)data collected in a haphazard fashion
descriptive statistics - (answers)used to summarize the collected data through
numbers such as averages and percentages; measures of central tendency and
measures of variability
inferential statistics - (answers)used to draw conclusions about a population,
based on the data obtained from a sample of the problem; bimodal/normal
distribution, hypothesis testing, central limit theorem, confidence interval,
regressions
population - (answers)the set of all subjects of interests
sample - (answers)the subset of the population of interest on which you collect
data
statistic - (answers)a numerical summary of a sample (x,s)
parameter - (answers)numerical summary of a population (μ,σ)
random sampling - (answers)a method of poll selection that gives each person in
a group the same chance of being selected
, 2|Page
categorical variables - (answers)a variable that names categories (descriptive
words or phrases)
dichotomous variable - (answers)a nominal variable that consists of two
categories (gender)
ordinal variable - (answers)a qualitative variable that incorporates an ordered
position, or ranking (freshmen, sophomore, junior, senior)
frequency - (answers)the number of observations in each category
percent - (answers)A ratio that compares a number to 100
proportion - (answers)the number of observations in each category divided by the
total number of observations
modal category - (answers)the category with the highest frequency
quantitative variables - (answers)a variable that takes on numeric values
continuous variable - (answers)a quantitative variable that has an infinite number
of possible values that are not countable (9.63,9.75,9.79...)
