Theoretical Statistics: Topics for a Core Course (2026
Edition) – Solutions Manual – Keener
Population - answers-the entire collection of individuals or objects about which information is
desired. may be considered to be finite or infinite
Census - answers-a collection of data from every member of the population
Sample - answers-a sub-collection or subset of a population selected for study
Parameter - answers-a numerical characteristic of a population
Statistic - answers-a numerical characteristic of a sample
Variable - answers-the characteristic about which we are interested
Data - answers-the observations that have been collected
Qualitative Data - answers-categorical or attribute data
Quantitative Data - answers-numerical data
Discrete Data - answers-count dataquantitative)
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, Continuous Data - answers-measure dataquantitative)
Sampling Error - answers-the difference between the result of a sample and the result for the
entire population. caused by random fluctuations of the sample- i.e. by chance
Normal - answers-bell-shaped distribution
Statistically Significant - answers-observation that is extremely unlikely to happen simply by
chance
Descriptive Statistics - answers-the collection, presentation, and description of data
Inferential Statistics - answers-interpreting the data in order to draw conclusions about the
population, based on information obtained from a sample
Frequency Distribution - answers-a chart or table giving the values of a variable together with
their corresponding frequencies
Blood Type - answers-example of a frequency distribution for qualitative data
Class Width - answers-the difference between two consecutive lower class boundaries
Class Midpoints - answers-the center value of each class
Relative Frequency - answers-a proportional measure of frequency, calculated by dividing the
frequency of that class by the total frequency of the data set
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Edition) – Solutions Manual – Keener
Population - answers-the entire collection of individuals or objects about which information is
desired. may be considered to be finite or infinite
Census - answers-a collection of data from every member of the population
Sample - answers-a sub-collection or subset of a population selected for study
Parameter - answers-a numerical characteristic of a population
Statistic - answers-a numerical characteristic of a sample
Variable - answers-the characteristic about which we are interested
Data - answers-the observations that have been collected
Qualitative Data - answers-categorical or attribute data
Quantitative Data - answers-numerical data
Discrete Data - answers-count dataquantitative)
1
, Continuous Data - answers-measure dataquantitative)
Sampling Error - answers-the difference between the result of a sample and the result for the
entire population. caused by random fluctuations of the sample- i.e. by chance
Normal - answers-bell-shaped distribution
Statistically Significant - answers-observation that is extremely unlikely to happen simply by
chance
Descriptive Statistics - answers-the collection, presentation, and description of data
Inferential Statistics - answers-interpreting the data in order to draw conclusions about the
population, based on information obtained from a sample
Frequency Distribution - answers-a chart or table giving the values of a variable together with
their corresponding frequencies
Blood Type - answers-example of a frequency distribution for qualitative data
Class Width - answers-the difference between two consecutive lower class boundaries
Class Midpoints - answers-the center value of each class
Relative Frequency - answers-a proportional measure of frequency, calculated by dividing the
frequency of that class by the total frequency of the data set
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