Stats 330 Exam 1 Material with
Complete Solutions
Statistics - ANSWER-a collection of methods for planning experiments, obtaining data,
and then organizing, summarizing, presenting, analyzing, interpreting, and drawing
conclusions based on the data
Population - ANSWER-the complete collection of all elements to be studied
Sample - ANSWER-a subcollection of elements drawn from a population
Parameter - ANSWER-a numerical measurement describing some characteristic of a
population
Statistic - ANSWER-a numerical measurement describing some characteristic of a
sample
quanitative data - ANSWER-consist of numbers representing counts or measurements
qualitative data - ANSWER-can be separated into different categories that are
distinguished by some non-numeric characteristic
Variable - ANSWER-a characteristic or attribute that can assume different values
discrete data - ANSWER-result from either a finite number of possible values or a
countable number of possible values (0,1,2,3)
Continuous Data - ANSWER-results from infinitely many possible values that can be
associated with points on a continuous scale in such a way that there are no gaps or
interruptions (1.57,10.64)
frequency table - ANSWER-lists categories (or classes of scores along with counts (or
frequencies) of the number of scores that fall into each category.
cumulative frequency - ANSWER-the sum of the frequencies for that class and all
previous classes
Relative Frequency - ANSWER-Class Frequency divided by sum of all frequencies (Can
be used as a percentage)
Complete Solutions
Statistics - ANSWER-a collection of methods for planning experiments, obtaining data,
and then organizing, summarizing, presenting, analyzing, interpreting, and drawing
conclusions based on the data
Population - ANSWER-the complete collection of all elements to be studied
Sample - ANSWER-a subcollection of elements drawn from a population
Parameter - ANSWER-a numerical measurement describing some characteristic of a
population
Statistic - ANSWER-a numerical measurement describing some characteristic of a
sample
quanitative data - ANSWER-consist of numbers representing counts or measurements
qualitative data - ANSWER-can be separated into different categories that are
distinguished by some non-numeric characteristic
Variable - ANSWER-a characteristic or attribute that can assume different values
discrete data - ANSWER-result from either a finite number of possible values or a
countable number of possible values (0,1,2,3)
Continuous Data - ANSWER-results from infinitely many possible values that can be
associated with points on a continuous scale in such a way that there are no gaps or
interruptions (1.57,10.64)
frequency table - ANSWER-lists categories (or classes of scores along with counts (or
frequencies) of the number of scores that fall into each category.
cumulative frequency - ANSWER-the sum of the frequencies for that class and all
previous classes
Relative Frequency - ANSWER-Class Frequency divided by sum of all frequencies (Can
be used as a percentage)
