Summary Statistics
Categorical data - correct answer-labels, names, or numbers of a group
Quantitative (numerical) data - correct answer-numerical in nature; counts or measurements;
have a unit and can be used arithmetically
discrete - correct answer-finite or countably infinite
continuous - correct answer-measurement of infinitely many outcomes
nominal - correct answer-unordered
Example: Blood type
ordinal - correct answer-ordered
Example: Pain Rating
x - correct answer-a variable to represent individual data points
n - correct answer-the number of data values in a sample (sample size)
N - correct answer-the number of data values in a population (population size)
Mean (x̄) - correct answer-arithmetic average
median - correct answer-50th percentile
middlemost value when the original data is arranged in increasing order
mode - correct answer-the value that occurs with the greatest frequency in a given data set
range - correct answer-the difference between the maximum and minimum values in a data
set
standard deviation - correct answer-measure of variation of the data about the mean
variance - correct answer-measure of variation equal to the square of the standard deviation
E (sigma) - correct answer-the sum of
IQR (interquartile range) - correct answer-measure of statistical dispersion, being equal to
the difference between the upper and lower quartiles, IQR = Q3 − Q1.
summary statistics - correct answer-statistics that summarize a great deal of numerical
information about a distribution, such as the mean and the standard deviation
Categorical data - correct answer-labels, names, or numbers of a group
Quantitative (numerical) data - correct answer-numerical in nature; counts or measurements;
have a unit and can be used arithmetically
discrete - correct answer-finite or countably infinite
continuous - correct answer-measurement of infinitely many outcomes
nominal - correct answer-unordered
Example: Blood type
ordinal - correct answer-ordered
Example: Pain Rating
x - correct answer-a variable to represent individual data points
n - correct answer-the number of data values in a sample (sample size)
N - correct answer-the number of data values in a population (population size)
Mean (x̄) - correct answer-arithmetic average
median - correct answer-50th percentile
middlemost value when the original data is arranged in increasing order
mode - correct answer-the value that occurs with the greatest frequency in a given data set
range - correct answer-the difference between the maximum and minimum values in a data
set
standard deviation - correct answer-measure of variation of the data about the mean
variance - correct answer-measure of variation equal to the square of the standard deviation
E (sigma) - correct answer-the sum of
IQR (interquartile range) - correct answer-measure of statistical dispersion, being equal to
the difference between the upper and lower quartiles, IQR = Q3 − Q1.
summary statistics - correct answer-statistics that summarize a great deal of numerical
information about a distribution, such as the mean and the standard deviation
