Statistics Portage CNSL 503 Exam 1 2026
COMPLETE QUESTIONS WITH CORRECT
DETAILED ANSWERS || 100%
GUARANTEED PASS <RECENT VERSION>
Portage CNSL 503: Statistics Exam 1
100 Questions & Answers
1. What is the branch of statistics that involves the organization, summarization, and display
of data?
A. Inferential Statistics
B. Descriptive Statistics
C. Predictive Statistics
D. Analytical Statistics
2. A researcher uses sample data to make a generalization about a larger population. This is
an example of:
A. Descriptive Statistics
B. Inferential Statistics
C. Data Mining
D. Parameter Calculation
3. The entire group of individuals or objects that a researcher wishes to study is called a:
A. Sample
B. Population
C. Cohort
D. Data Set
4. A numerical measure that describes a characteristic of a population is called a:
A. Statistic
B. Parameter
C. Estimate
D. Variable
,5. What is the term for a characteristic that can assume different values?
A. Constant
B. Parameter
C. Variable
D. Statistic
6. The variable "height" measured in inches is an example of what level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
7. Which level of measurement classifies data into categories with no inherent order?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
8. Class rankings (1st, 2nd, 3rd) represent which level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
9. The major difference between interval and ratio levels of measurement is that the ratio
level has:
A. A true zero point
B. Meaningful differences between values
C. Ordered categories
D. A finite number of categories
10. A researcher collects data from every member of a population. This process is called a:
A. Sample
B. Census
C. Survey
D. Poll
11. Which of the following is a discrete variable?
A. Time to run a marathon
B. Weight of a newborn
,C. Number of students in a class
D. Temperature in Fahrenheit
12. Which of the following is a continuous variable?
A. Number of cars in a parking lot
B. Shoe size
C. Blood pressure
D. Number of questions on an exam
13. A frequency distribution that presents the proportion of observations for each category is
called a:
A. Relative frequency distribution
B. Cumulative frequency distribution
C. Simple frequency distribution
D. Percentage distribution
14. In a histogram, the horizontal scale represents the:
A. Frequency
B. Class boundaries
C. Cumulative frequency
D. Relative frequency
15. A graph that uses connected points to show changes in data over time is called a:
A. Histogram
B. Bar Chart
C. Frequency Polygon
D. Time Series Graph
16. Which measure of central tendency is most affected by extreme outliers?
A. Mode
B. Median
C. Mean
D. Midrange
17. In a positively skewed distribution, the relationship between the mean, median, and
mode is typically:
A. Mean = Median = Mode
B. Mean < Median < Mode
C. Mean > Median > Mode
D. Median > Mean > Mode
, 18. What is the median of the following data set: 5, 8, 12, 15, 20?
A. 8
B. 12
C. 13
D. 15
19. The mode is best described as the value that:
A. Represents the mathematical average.
B. Divides the data set in half.
C. Occurs most frequently.
D. Is the most sensitive to outliers.
20. Which measure of central tendency can be used with data at the nominal level?
A. Mean
B. Median
C. Mode
D. All of the above
21. The range is calculated as:
A. (Highest value - Lowest value) / 2
B. The average of all values
C. Highest value - Lowest value
D. The most frequent value
22. The variance is a measure of:
A. Central tendency
B. Relative position
C. Skewness
D. Dispersion (variability)
23. The standard deviation is defined as the:
A. Square of the variance
B. Average distance of scores from the mean
C. Square root of the variance
D. Difference between the highest and lowest scores
24. For a sample, the sum of the deviations of each value from the mean will always equal:
A. The variance
B. The standard deviation
COMPLETE QUESTIONS WITH CORRECT
DETAILED ANSWERS || 100%
GUARANTEED PASS <RECENT VERSION>
Portage CNSL 503: Statistics Exam 1
100 Questions & Answers
1. What is the branch of statistics that involves the organization, summarization, and display
of data?
A. Inferential Statistics
B. Descriptive Statistics
C. Predictive Statistics
D. Analytical Statistics
2. A researcher uses sample data to make a generalization about a larger population. This is
an example of:
A. Descriptive Statistics
B. Inferential Statistics
C. Data Mining
D. Parameter Calculation
3. The entire group of individuals or objects that a researcher wishes to study is called a:
A. Sample
B. Population
C. Cohort
D. Data Set
4. A numerical measure that describes a characteristic of a population is called a:
A. Statistic
B. Parameter
C. Estimate
D. Variable
,5. What is the term for a characteristic that can assume different values?
A. Constant
B. Parameter
C. Variable
D. Statistic
6. The variable "height" measured in inches is an example of what level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
7. Which level of measurement classifies data into categories with no inherent order?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
8. Class rankings (1st, 2nd, 3rd) represent which level of measurement?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
9. The major difference between interval and ratio levels of measurement is that the ratio
level has:
A. A true zero point
B. Meaningful differences between values
C. Ordered categories
D. A finite number of categories
10. A researcher collects data from every member of a population. This process is called a:
A. Sample
B. Census
C. Survey
D. Poll
11. Which of the following is a discrete variable?
A. Time to run a marathon
B. Weight of a newborn
,C. Number of students in a class
D. Temperature in Fahrenheit
12. Which of the following is a continuous variable?
A. Number of cars in a parking lot
B. Shoe size
C. Blood pressure
D. Number of questions on an exam
13. A frequency distribution that presents the proportion of observations for each category is
called a:
A. Relative frequency distribution
B. Cumulative frequency distribution
C. Simple frequency distribution
D. Percentage distribution
14. In a histogram, the horizontal scale represents the:
A. Frequency
B. Class boundaries
C. Cumulative frequency
D. Relative frequency
15. A graph that uses connected points to show changes in data over time is called a:
A. Histogram
B. Bar Chart
C. Frequency Polygon
D. Time Series Graph
16. Which measure of central tendency is most affected by extreme outliers?
A. Mode
B. Median
C. Mean
D. Midrange
17. In a positively skewed distribution, the relationship between the mean, median, and
mode is typically:
A. Mean = Median = Mode
B. Mean < Median < Mode
C. Mean > Median > Mode
D. Median > Mean > Mode
, 18. What is the median of the following data set: 5, 8, 12, 15, 20?
A. 8
B. 12
C. 13
D. 15
19. The mode is best described as the value that:
A. Represents the mathematical average.
B. Divides the data set in half.
C. Occurs most frequently.
D. Is the most sensitive to outliers.
20. Which measure of central tendency can be used with data at the nominal level?
A. Mean
B. Median
C. Mode
D. All of the above
21. The range is calculated as:
A. (Highest value - Lowest value) / 2
B. The average of all values
C. Highest value - Lowest value
D. The most frequent value
22. The variance is a measure of:
A. Central tendency
B. Relative position
C. Skewness
D. Dispersion (variability)
23. The standard deviation is defined as the:
A. Square of the variance
B. Average distance of scores from the mean
C. Square root of the variance
D. Difference between the highest and lowest scores
24. For a sample, the sum of the deviations of each value from the mean will always equal:
A. The variance
B. The standard deviation
