1|Page
QTM100 EXAM 1 - Emory University Questions and
Answers|2025 Update|100% Correct
census - (answers)collecting data on everyone
descriptive statistics - (answers)used to summarize the collected data through
numbers such as averages and percentages
inferential statistics - (answers)used to draw conclusions about a population
based on the data obtained from a sample of the population
quantitative (2) - (answers)(numerical)
1. discrete- finite number
2. continuous- infinite numbers
categorical (2) - (answers)(descriptive)
1. dichotomous- two categories
2. ordinal- natural ordering
dsitribution - (answers)tells the possible values the variable as well as the
occurrence of those values
proportion equation - (answers)# of observations in each category/ the total # of
observations
, 2|Page
percentage equation - (answers)proportion x 100
graphs for categorical variables (2) - (answers)1. pie charts
2. bar charts
statistics for a categorical variable (2) - (answers)1. proportion
2. percentage
graphs more useful for small data sets (2) - (answers)1. dot plots
2. stem and leaf plots
graphs more useful for large data sets (1) - (answers)1. histograms
histograms - (answers)6-10 intervals is appropriate
time series plot - (answers)displays data collected over time
unimodal - (answers)has one peak
symmetric - (answers)mirror image when folded in half
QTM100 EXAM 1 - Emory University Questions and
Answers|2025 Update|100% Correct
census - (answers)collecting data on everyone
descriptive statistics - (answers)used to summarize the collected data through
numbers such as averages and percentages
inferential statistics - (answers)used to draw conclusions about a population
based on the data obtained from a sample of the population
quantitative (2) - (answers)(numerical)
1. discrete- finite number
2. continuous- infinite numbers
categorical (2) - (answers)(descriptive)
1. dichotomous- two categories
2. ordinal- natural ordering
dsitribution - (answers)tells the possible values the variable as well as the
occurrence of those values
proportion equation - (answers)# of observations in each category/ the total # of
observations
, 2|Page
percentage equation - (answers)proportion x 100
graphs for categorical variables (2) - (answers)1. pie charts
2. bar charts
statistics for a categorical variable (2) - (answers)1. proportion
2. percentage
graphs more useful for small data sets (2) - (answers)1. dot plots
2. stem and leaf plots
graphs more useful for large data sets (1) - (answers)1. histograms
histograms - (answers)6-10 intervals is appropriate
time series plot - (answers)displays data collected over time
unimodal - (answers)has one peak
symmetric - (answers)mirror image when folded in half
