BUAL 2600 Final Exam ACTUAL
UPDATED QUESTIONS AND CORRECT
ANSWERS
In __ we select elements because they are easy to sample. - CORRECT
ANSWERS✅✅convenience sampling
__ sampling is where we know the chance that each element will be included in the sample,
which allows us to statistical inferences about the sample population - CORRECT
ANSWERS✅✅probability
Which of the following is a type of question used in survey research? - CORRECT
ANSWERS✅✅open ended, dichotomous, and multiple choice are all correct
A ___ is a list of all units in a population - CORRECT ANSWERS✅✅frame
Which of the following is a quantitative variable? - CORRECT ANSWERS✅✅mileage of a
car
____ is the science of using a sample to make generalizations about the important aspects of a
population. - CORRECT ANSWERS✅✅statistical inference
College entrance exam scores, such as SAT scores, are an example of an ___ variable -
CORRECT ANSWERS✅✅interval
Examining all population measurements is called a_____________. - CORRECT
ANSWERS✅✅census
A ___ is the subset of the units in a population - CORRECT ANSWERS✅✅sample
A ___ variable takes on values that are numbers on the real number line - CORRECT
ANSWERS✅✅quantitative
, A set of all elements we wish to study is called a - CORRECT ANSWERS✅✅population
If we collect data on the number of wins the Dallas Cowboys earned each of the past 10
years, we have ____ data - CORRECT ANSWERS✅✅time series
Which of the following divides quantitative measurements into classes and graphs the
frequency, relative frequency, or percentage frequency for each class? - CORRECT
ANSWERS✅✅histogram
____ and ____ are used to describe qualitative (categorical) date - CORRECT
ANSWERS✅✅bar charts, pie charts
If there are 130 values in a data set, how many classes should be created for a frequency
histogram? - CORRECT ANSWERS✅✅8
the number of measurements falling within a class interval is called the - CORRECT
ANSWERS✅✅frequency
A relative frequency histogram having a longer tail to the right than to the left is said to be -
CORRECT ANSWERS✅✅skewed to the right
The proportion of measurements in a class is called the __ of that class - CORRECT
ANSWERS✅✅relative frequency
The following is a partial relative frequency distribution of grades in an introductory statistics
course.
Grade Relative Frequency
A 0.22
B?
C 0.18
D 0.17
UPDATED QUESTIONS AND CORRECT
ANSWERS
In __ we select elements because they are easy to sample. - CORRECT
ANSWERS✅✅convenience sampling
__ sampling is where we know the chance that each element will be included in the sample,
which allows us to statistical inferences about the sample population - CORRECT
ANSWERS✅✅probability
Which of the following is a type of question used in survey research? - CORRECT
ANSWERS✅✅open ended, dichotomous, and multiple choice are all correct
A ___ is a list of all units in a population - CORRECT ANSWERS✅✅frame
Which of the following is a quantitative variable? - CORRECT ANSWERS✅✅mileage of a
car
____ is the science of using a sample to make generalizations about the important aspects of a
population. - CORRECT ANSWERS✅✅statistical inference
College entrance exam scores, such as SAT scores, are an example of an ___ variable -
CORRECT ANSWERS✅✅interval
Examining all population measurements is called a_____________. - CORRECT
ANSWERS✅✅census
A ___ is the subset of the units in a population - CORRECT ANSWERS✅✅sample
A ___ variable takes on values that are numbers on the real number line - CORRECT
ANSWERS✅✅quantitative
, A set of all elements we wish to study is called a - CORRECT ANSWERS✅✅population
If we collect data on the number of wins the Dallas Cowboys earned each of the past 10
years, we have ____ data - CORRECT ANSWERS✅✅time series
Which of the following divides quantitative measurements into classes and graphs the
frequency, relative frequency, or percentage frequency for each class? - CORRECT
ANSWERS✅✅histogram
____ and ____ are used to describe qualitative (categorical) date - CORRECT
ANSWERS✅✅bar charts, pie charts
If there are 130 values in a data set, how many classes should be created for a frequency
histogram? - CORRECT ANSWERS✅✅8
the number of measurements falling within a class interval is called the - CORRECT
ANSWERS✅✅frequency
A relative frequency histogram having a longer tail to the right than to the left is said to be -
CORRECT ANSWERS✅✅skewed to the right
The proportion of measurements in a class is called the __ of that class - CORRECT
ANSWERS✅✅relative frequency
The following is a partial relative frequency distribution of grades in an introductory statistics
course.
Grade Relative Frequency
A 0.22
B?
C 0.18
D 0.17
