Page | 1
w w
, Chapter 1: Introduction to Statistics w w w w
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of
w w w w w w w w w w w w w w w
wall newborns in a hospital over a month is 7.5 pounds.
w w w w w w w w w w
• A. Statistic
w
• B. Parameter
w
w Answer: B w
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
w w w w w w w w w w w w w w w w
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found
w w w w w w w w w w w w w w w w
that 60% were satisfied with their healthcare.
w w w w w w w
• A. Statistic
w
• B. Parameter
w
w Answer: A w
Rationale: The value is based on a sample, making it a statistic.
w w w w w w w w w w w
3. Which of the following represents a population?
w w w w w w
• A. A sample of 200 patients from a hospital
w w w w w w w w
• B. All patients admitted to a hospital in 2023
w w w w w w w w
• C. A group of patients selected for a study
w w w w w w w w
• D. 50 diabetic patients from a
w w w w w
clinic Answer: B
w w w
Rationale: A population includes all members of a group, while a sample is a subset of the population.
w w w w w w w w w w w w w w w w w
4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
w w w w w w w w w w w w w w w w w w w w
• A. Discrete
w
• B. Continuous
w
• C. Nominal
w
Page | 2
w w
,• D. Ordinal
w
w Answer: A w
Rationale: The number of visits is discrete data because it represents countable whole numbers.
w w w w w w w w w w w w w
5. A researcher measures the height of patients in a clinic. What level of measurement is height?
w w w w w w w w w w w w w w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratio
w
w Answer: D w
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences
w w w w w w w w w w w w w w w w
between values.
w w
6. Which type of data is temperature in Celsius?
w w w w w w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratio
w
w Answer: C w
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between
w w w w w w w w w w w w w w w w
values are meaningful.
w w w
7. Determine whether the data is discrete or continuous: The number of babies born in a hospital
w w w w w w w w w w w w w w w
each day.
w w
• A. Discrete
w
• B. Continuous
w
w Answer: A w
Rationale: The number of babies born is discrete because it represents countable whole numbers.
w w w w w w w w w w w w w
Page | 3
w w
, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
w w w w w w w w w w w w w w w
• A. Discrete
w
• B. Continuous
w
w Answer: B w
Rationale: Weight is continuous data because it can take any value within a range.
w w w w w w w w w w w w w
9. A nurse collects data on the number of days patients spend in the hospital. What level of
w w w w w w w w w w w w w w w w
wmeasurement is this? w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratiow
w Answer: D w
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between
w w w w w w w w w w w w w w w w w
values.
w
10. A researcher categorizes patients by blood type. What level of measurement is this?
w w w w w w w w w w w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratiow
w Answer: A w
Rationale: Blood type is nominal data because it represents categories without a meaningful order.
w w w w w w w w w w w w w
11. In a study, the ages of participants are recorded. What type of variable is age?
w w w w w w w w w w w w w w
• A. Nominal
w
• B. Ordinal
w
Page | 4
w w
w w
, Chapter 1: Introduction to Statistics w w w w
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of
w w w w w w w w w w w w w w w
wall newborns in a hospital over a month is 7.5 pounds.
w w w w w w w w w w
• A. Statistic
w
• B. Parameter
w
w Answer: B w
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
w w w w w w w w w w w w w w w w
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found
w w w w w w w w w w w w w w w w
that 60% were satisfied with their healthcare.
w w w w w w w
• A. Statistic
w
• B. Parameter
w
w Answer: A w
Rationale: The value is based on a sample, making it a statistic.
w w w w w w w w w w w
3. Which of the following represents a population?
w w w w w w
• A. A sample of 200 patients from a hospital
w w w w w w w w
• B. All patients admitted to a hospital in 2023
w w w w w w w w
• C. A group of patients selected for a study
w w w w w w w w
• D. 50 diabetic patients from a
w w w w w
clinic Answer: B
w w w
Rationale: A population includes all members of a group, while a sample is a subset of the population.
w w w w w w w w w w w w w w w w w
4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
w w w w w w w w w w w w w w w w w w w w
• A. Discrete
w
• B. Continuous
w
• C. Nominal
w
Page | 2
w w
,• D. Ordinal
w
w Answer: A w
Rationale: The number of visits is discrete data because it represents countable whole numbers.
w w w w w w w w w w w w w
5. A researcher measures the height of patients in a clinic. What level of measurement is height?
w w w w w w w w w w w w w w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratio
w
w Answer: D w
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences
w w w w w w w w w w w w w w w w
between values.
w w
6. Which type of data is temperature in Celsius?
w w w w w w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratio
w
w Answer: C w
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between
w w w w w w w w w w w w w w w w
values are meaningful.
w w w
7. Determine whether the data is discrete or continuous: The number of babies born in a hospital
w w w w w w w w w w w w w w w
each day.
w w
• A. Discrete
w
• B. Continuous
w
w Answer: A w
Rationale: The number of babies born is discrete because it represents countable whole numbers.
w w w w w w w w w w w w w
Page | 3
w w
, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
w w w w w w w w w w w w w w w
• A. Discrete
w
• B. Continuous
w
w Answer: B w
Rationale: Weight is continuous data because it can take any value within a range.
w w w w w w w w w w w w w
9. A nurse collects data on the number of days patients spend in the hospital. What level of
w w w w w w w w w w w w w w w w
wmeasurement is this? w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratiow
w Answer: D w
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between
w w w w w w w w w w w w w w w w w
values.
w
10. A researcher categorizes patients by blood type. What level of measurement is this?
w w w w w w w w w w w w
• A. Nominal
w
• B. Ordinal
w
• C. Interval
w
• D. Ratiow
w Answer: A w
Rationale: Blood type is nominal data because it represents categories without a meaningful order.
w w w w w w w w w w w w w
11. In a study, the ages of participants are recorded. What type of variable is age?
w w w w w w w w w w w w w w
• A. Nominal
w
• B. Ordinal
w
Page | 4
w w
