Chapter 01 10e
Indicate whether the statement is true or false.
1. True/False: Understanding that the range is calculated by subtracting the minimum value from the maximum
value helps us interpret the spread of a dataset, indicating how much variability exists between the highest and
lowest values.
a. True
b. False
ANSWER: True
2. True/False: The number of students in a classroom is an example of continuous data.
a. True
b. False
ANSWER: False
3. True/False: The sample mean is calculated by adding all the values in a dataset and dividing by the number of
values.
a. True
b. False
ANSWER: True
4. True/False: The sample median is the middle value of a dataset when the values are arranged in ascending order.
a. True
b. False
ANSWER: True
5. True/False: The sample mean is less affected by outliers compared to the sample median.
a. True
b. False
ANSWER: False
6. True/False: The sample mean is always equal to the sample median.
a. True
b. False
ANSWER: False
7. True/False: True or False: Inferential statistics allow researchers to draw conclusions about a population based on
the analysis of sample data.
a. True
b. False
ANSWER: True
Page 1
,Name: Class: Date:
Chapter 01 10e
8. True/False: A hypothetical population refers to a group that cannot be directly observed or measured.
a. True
b. False
ANSWER: True
9. True/False: When analyzing a population, using stratified sampling can lead to more accurate representations of
subgroups compared to simple random sampling, as it ensures that each subgroup is adequately represented in
the sample.
a. True
b. False
ANSWER: True
10. True/False: A convenience sample is one of the best ways to ensure a representative sample of a population.
a. True
b. False
ANSWER: False
11. True/False: Comparative boxplots can be used to compare multiple datasets.
a. True
b. False
ANSWER: True
12. True/False: Analyzing a stem-and-leaf plot allows you to determine not only the shape of the data distribution but
also to identify patterns such as outliers, gaps, and the overall spread of the data.
a. True
b. False
ANSWER: True
13. True/False: The sample proportion is found by dividing the number of successes by the total sample size.
a. True
b. False
ANSWER: True
14. True/False: A higher standard deviation than variance indicates that the data points are clustered closely around
the mean, suggesting low variability within the dataset.
a. True
b. False
ANSWER: False
Page 2
,Name: Class: Date:
Chapter 01 10e
15. True/False: An analytical study focuses on understanding relationships and causal effects between variables,
while an enumerative study primarily counts and describes characteristics of a population.
a. True
b. False
ANSWER: True
16. True/False: A distribution with two peaks is classified as unimodal.
a. True
b. False
ANSWER: False
17. True/False: A histogram displays the frequency of data within specified intervals.
a. True
b. False
ANSWER: True
18. True/False: A histogram can be used to represent categorical data.
a. True
b. False
ANSWER: False
19. True/False: A stem-and-leaf plot can be used to display both the shape and the frequency of a dataset.
a. True
b. False
ANSWER: True
20. True/False: An outlier is defined as a data point that falls within the interquartile range (IQR).
a. True
b. False
ANSWER: False
21. True/False: A dotplot displays individual data points as dots above a number line.
a. True
b. False
ANSWER: True
Page 3
, Name: Class: Date:
Chapter 01 10e
22. True/False: A trimmed mean is calculated by removing the top and bottom percentages of data points before
averaging.
a. True
b. False
ANSWER: True
23. True/False: A population includes every member of a defined group, while a sample consists of only a portion of
that group.
a. True
b. False
ANSWER: True
24. True/False: A symmetric distribution has equal tails on both sides of the mean.
a. True
b. False
ANSWER: True
25. True/False: A boxplot displays the mean and mode of a dataset.
a. True
b. False
ANSWER: False
26. True/False: The range is the only measure of variation needed to understand a dataset's variability.
a. True
b. False
ANSWER: False
Indicate the answer choice that best completes the statement or answers the question.
27. Which is a recognized type of sampling method?
a. Random sampling
b. Stratified sampling
c. Purposive sampling
d. Randomized control trial
ANSWER: a
Page 4
Indicate whether the statement is true or false.
1. True/False: Understanding that the range is calculated by subtracting the minimum value from the maximum
value helps us interpret the spread of a dataset, indicating how much variability exists between the highest and
lowest values.
a. True
b. False
ANSWER: True
2. True/False: The number of students in a classroom is an example of continuous data.
a. True
b. False
ANSWER: False
3. True/False: The sample mean is calculated by adding all the values in a dataset and dividing by the number of
values.
a. True
b. False
ANSWER: True
4. True/False: The sample median is the middle value of a dataset when the values are arranged in ascending order.
a. True
b. False
ANSWER: True
5. True/False: The sample mean is less affected by outliers compared to the sample median.
a. True
b. False
ANSWER: False
6. True/False: The sample mean is always equal to the sample median.
a. True
b. False
ANSWER: False
7. True/False: True or False: Inferential statistics allow researchers to draw conclusions about a population based on
the analysis of sample data.
a. True
b. False
ANSWER: True
Page 1
,Name: Class: Date:
Chapter 01 10e
8. True/False: A hypothetical population refers to a group that cannot be directly observed or measured.
a. True
b. False
ANSWER: True
9. True/False: When analyzing a population, using stratified sampling can lead to more accurate representations of
subgroups compared to simple random sampling, as it ensures that each subgroup is adequately represented in
the sample.
a. True
b. False
ANSWER: True
10. True/False: A convenience sample is one of the best ways to ensure a representative sample of a population.
a. True
b. False
ANSWER: False
11. True/False: Comparative boxplots can be used to compare multiple datasets.
a. True
b. False
ANSWER: True
12. True/False: Analyzing a stem-and-leaf plot allows you to determine not only the shape of the data distribution but
also to identify patterns such as outliers, gaps, and the overall spread of the data.
a. True
b. False
ANSWER: True
13. True/False: The sample proportion is found by dividing the number of successes by the total sample size.
a. True
b. False
ANSWER: True
14. True/False: A higher standard deviation than variance indicates that the data points are clustered closely around
the mean, suggesting low variability within the dataset.
a. True
b. False
ANSWER: False
Page 2
,Name: Class: Date:
Chapter 01 10e
15. True/False: An analytical study focuses on understanding relationships and causal effects between variables,
while an enumerative study primarily counts and describes characteristics of a population.
a. True
b. False
ANSWER: True
16. True/False: A distribution with two peaks is classified as unimodal.
a. True
b. False
ANSWER: False
17. True/False: A histogram displays the frequency of data within specified intervals.
a. True
b. False
ANSWER: True
18. True/False: A histogram can be used to represent categorical data.
a. True
b. False
ANSWER: False
19. True/False: A stem-and-leaf plot can be used to display both the shape and the frequency of a dataset.
a. True
b. False
ANSWER: True
20. True/False: An outlier is defined as a data point that falls within the interquartile range (IQR).
a. True
b. False
ANSWER: False
21. True/False: A dotplot displays individual data points as dots above a number line.
a. True
b. False
ANSWER: True
Page 3
, Name: Class: Date:
Chapter 01 10e
22. True/False: A trimmed mean is calculated by removing the top and bottom percentages of data points before
averaging.
a. True
b. False
ANSWER: True
23. True/False: A population includes every member of a defined group, while a sample consists of only a portion of
that group.
a. True
b. False
ANSWER: True
24. True/False: A symmetric distribution has equal tails on both sides of the mean.
a. True
b. False
ANSWER: True
25. True/False: A boxplot displays the mean and mode of a dataset.
a. True
b. False
ANSWER: False
26. True/False: The range is the only measure of variation needed to understand a dataset's variability.
a. True
b. False
ANSWER: False
Indicate the answer choice that best completes the statement or answers the question.
27. Which is a recognized type of sampling method?
a. Random sampling
b. Stratified sampling
c. Purposive sampling
d. Randomized control trial
ANSWER: a
Page 4
