Statistics Exam (Chapters 1-5) | Questions with Certified Solutions. | 2025
LATEST UPDATED
What impact do extreme scores have on the median? - (answers)Minimal Impact
What symbols are used to represent the median? - (answers)Med or Mdn
What does the large N represent? - (answers)Population Size
What will you need to complete most statistical analyses? - (answers)A personal computer
What is the symbol used to represent the mean? - (answers)X with a bar over it.
What type of statistics are used to organize and describe the characteristics of a collection of
data? - (answers)Descriptive
If you were to calculate the average of individual income and you found no outliers, which
measure of central tendency should you use? - (answers)Mean
Which of the following is not a measure of central tendency? - (answers)Standard Deviation
Which of the following are used to define the percentage of case equal to and below a certain
point in a distribution of scores? - (answers)Percentile points
What is the Mean value for the following scores: 10, 35, 40, 60, 55, 25, 50? - (answers)39.29
What does the small n represent? - (answers)Sample size
What does the term "skew" mean? - (answers)Significantly distort
,Which measure of central tendency is most influenced by outliers? - (answers)Mean
What does the symbol M represent? - (answers)Mean
What is the Mean value of the following scores: 117, 132, 147, 156, 196? - (answers)149.6
What is the Mean value of the following scores: 12, 25, 15, 27, 32, 8? - (answers)19.83
A test score in the 47th percentile would be considered: - (answers)About average
What is the mode of the following data: 57 males and 43 females? - (answers)males
What type of statistics employ the use of sample data that is used to infer information about the
population? - (answers)Inferential statistics
Which of the following symbols represents the individual score? - (answers)X
What would be your preferred measure of central tendency if you had the following data: 23
Americans, 57 Mexicans, and 14 Canadians? - (answers)Mode
The mode will always consist of the following: - (answers)The name of the category
Which measure of central tendency is also known as the midpoint of a set of scores? -
(answers)Median
Which of the following symbols represents sample size? - (answers)n
What is the median of the following set of scores: 23, 17, 15, 32, 38, 47 - (answers)27.5
, Which of the following would be used to describe the type of statistical methods used to organize
and describe the characteristics of a collection of data? - (answers)Descriptive Statistics
In what century, was the simplest test for examining differences between two groups first
advanced? - (answers)20th Century
When should inferential statistics typically be used? - (answers)After descriptive statistics
What is the formula for computing the mean? - (answers)EX/n
What value is most often used to represent an entire group of scores? - (answers)Mean
The average age of everyone in the class is an example of what type of statistics? -
(answers)Descriptive
If your professor tells you, "if you don't start with reliable data, you'll end up with unreliable
results," what does he/she mean? - (answers)Garbage in, garbage out
What term is defined as a set of tool and techniques used for describing, organizing, and
interpreting data? - (answers)Statistics
What is a collection of information also called? - (answers)data set
If you were to calculate the average of individual income and you found many extreme scores,
which measure of central tendency should be used? - (answers)Median
This is the calculated by multiplying values by the frequency of their occurrence, adding the total
of all the products, and then dividing by the total number of occurrences: - (answers)Weighted
mean
LATEST UPDATED
What impact do extreme scores have on the median? - (answers)Minimal Impact
What symbols are used to represent the median? - (answers)Med or Mdn
What does the large N represent? - (answers)Population Size
What will you need to complete most statistical analyses? - (answers)A personal computer
What is the symbol used to represent the mean? - (answers)X with a bar over it.
What type of statistics are used to organize and describe the characteristics of a collection of
data? - (answers)Descriptive
If you were to calculate the average of individual income and you found no outliers, which
measure of central tendency should you use? - (answers)Mean
Which of the following is not a measure of central tendency? - (answers)Standard Deviation
Which of the following are used to define the percentage of case equal to and below a certain
point in a distribution of scores? - (answers)Percentile points
What is the Mean value for the following scores: 10, 35, 40, 60, 55, 25, 50? - (answers)39.29
What does the small n represent? - (answers)Sample size
What does the term "skew" mean? - (answers)Significantly distort
,Which measure of central tendency is most influenced by outliers? - (answers)Mean
What does the symbol M represent? - (answers)Mean
What is the Mean value of the following scores: 117, 132, 147, 156, 196? - (answers)149.6
What is the Mean value of the following scores: 12, 25, 15, 27, 32, 8? - (answers)19.83
A test score in the 47th percentile would be considered: - (answers)About average
What is the mode of the following data: 57 males and 43 females? - (answers)males
What type of statistics employ the use of sample data that is used to infer information about the
population? - (answers)Inferential statistics
Which of the following symbols represents the individual score? - (answers)X
What would be your preferred measure of central tendency if you had the following data: 23
Americans, 57 Mexicans, and 14 Canadians? - (answers)Mode
The mode will always consist of the following: - (answers)The name of the category
Which measure of central tendency is also known as the midpoint of a set of scores? -
(answers)Median
Which of the following symbols represents sample size? - (answers)n
What is the median of the following set of scores: 23, 17, 15, 32, 38, 47 - (answers)27.5
, Which of the following would be used to describe the type of statistical methods used to organize
and describe the characteristics of a collection of data? - (answers)Descriptive Statistics
In what century, was the simplest test for examining differences between two groups first
advanced? - (answers)20th Century
When should inferential statistics typically be used? - (answers)After descriptive statistics
What is the formula for computing the mean? - (answers)EX/n
What value is most often used to represent an entire group of scores? - (answers)Mean
The average age of everyone in the class is an example of what type of statistics? -
(answers)Descriptive
If your professor tells you, "if you don't start with reliable data, you'll end up with unreliable
results," what does he/she mean? - (answers)Garbage in, garbage out
What term is defined as a set of tool and techniques used for describing, organizing, and
interpreting data? - (answers)Statistics
What is a collection of information also called? - (answers)data set
If you were to calculate the average of individual income and you found many extreme scores,
which measure of central tendency should be used? - (answers)Median
This is the calculated by multiplying values by the frequency of their occurrence, adding the total
of all the products, and then dividing by the total number of occurrences: - (answers)Weighted
mean
