EXST 2201 Exam 1 Questions With All Correct
& Verified Answers
Statistics Correct answer--The science of collecting, organizing and summarizing, and analyzing
information in order to draw conclusions
-Also, the study of data
Sampling Correct answer--Techniques used to collect information
Descriptive Statistics Correct answer--Techniques used to condense and describe sets of data
-i.e.-frequency table, histogram, and summary numbers
Inferential Statistics Correct answer--Techniques used to systematically draw conclusions about a
population from a set of sample data
Population Correct answer--The totality of elements in a well-defined group to be studied
Sample Correct answer--A subset of a population
Individual Correct answer--One object from the population
Goal of Sampling Correct answer-1. A measurable number of individuals, that are...
2. Representative of the population
Sampling can be done... Correct answer-With or without replacement
Simple Random Sampling Correct answer--A method of choosing a sample such that each sample
of the same size has the same chance of being chosen
Benefits of Simple Random Sampling Correct answer--DOES remove selection bias from sample
-DOES NOT affect the natural variability of data
-DOES NOT guarantee a representative sample
Constant Correct answer--A characteristic of the individuals in the population whose repeated
measurement gives only one possible value
Variable Correct answer--A characteristic of the individuals in the population whose repeated
measurement gives many possible values
Random Variable Correct answer--A characteristic of the individuals in the population whose
repeated measurement gives randomly varying values
Qualitative Data Correct answer--Data that can be classified by some mutually exclusive and
exhaustive quality of individuals of the population
-CANNOT BE COUNTED
-Ex. Race, gender, skin color, animal, item, years, etc.
Quantitative Data Correct answer--Data that are numerical and allow the use of arithmetic
operations
-discreet and continuous data
& Verified Answers
Statistics Correct answer--The science of collecting, organizing and summarizing, and analyzing
information in order to draw conclusions
-Also, the study of data
Sampling Correct answer--Techniques used to collect information
Descriptive Statistics Correct answer--Techniques used to condense and describe sets of data
-i.e.-frequency table, histogram, and summary numbers
Inferential Statistics Correct answer--Techniques used to systematically draw conclusions about a
population from a set of sample data
Population Correct answer--The totality of elements in a well-defined group to be studied
Sample Correct answer--A subset of a population
Individual Correct answer--One object from the population
Goal of Sampling Correct answer-1. A measurable number of individuals, that are...
2. Representative of the population
Sampling can be done... Correct answer-With or without replacement
Simple Random Sampling Correct answer--A method of choosing a sample such that each sample
of the same size has the same chance of being chosen
Benefits of Simple Random Sampling Correct answer--DOES remove selection bias from sample
-DOES NOT affect the natural variability of data
-DOES NOT guarantee a representative sample
Constant Correct answer--A characteristic of the individuals in the population whose repeated
measurement gives only one possible value
Variable Correct answer--A characteristic of the individuals in the population whose repeated
measurement gives many possible values
Random Variable Correct answer--A characteristic of the individuals in the population whose
repeated measurement gives randomly varying values
Qualitative Data Correct answer--Data that can be classified by some mutually exclusive and
exhaustive quality of individuals of the population
-CANNOT BE COUNTED
-Ex. Race, gender, skin color, animal, item, years, etc.
Quantitative Data Correct answer--Data that are numerical and allow the use of arithmetic
operations
-discreet and continuous data
