Test Bank - Biostatistics for the Biological and Health Sciences, 2nd
Edition Graded A+ 2026
NursePrepHub stuvia
, Chapter 1: Introduction to Statistics
x x x x
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all
x x x x x x x x x x x x x x x x
newborns in a hospital over a month is 7.5 pounds.
x x x x x x x x x x
• A. Statistic
x
• B. Parameter
x
xAnswer: B x
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
x x x x x x x x x x x x x x x x
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found that
x x x x x x x x x x x x x x x x x
60% were satisfied with their healthcare.
x x x x x x
• A. Statistic
x
• B. Parameter
x
xAnswer: A x
Rationale: The value is based on a sample, making it a statistic.
x x x x x x x x x x x
3. Which of the following represents a population?
x x x x x x
• A. A sample of 200 patients from a hospital
x x x x x x x x
• B. All patients admitted to a hospital in 2023
x x x x x x x x
• C. A group of patients selected for a study
x x x x x x x x
• D. 50 diabetic patients from a clinic
x x x x x x
xAnswer: B x
Rationale: A population includes all members of a group, while a sample is a subset of the population.
x x x x x x x x x x x x x x x x x
4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
x x x x x x x x x x x x x x x x x x x x
• A. Discrete
x
• B. Continuous
x
• C. Nominal
x
Page | 1 x x
,• D. Ordinal
x
xAnswer: A x
Rationale: The number of visits is discrete data because it represents countable whole numbers.
x x x x x x x x x x x x x
5. A researcher measures the height of patients in a clinic. What level of measurement is height?
x x x x x x x x x x x x x x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratio
x
xAnswer: D x
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences
x x x x x x x x x x x x x x x x
between values.
x x
6. Which type of data is temperature in Celsius?
x x x x x x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratio
x
xAnswer: C x
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between
x x x x x x x x x x x x x x x x
values are meaningful.
x x x
7. Determine whether the data is discrete or continuous: The number of babies born in a hospital each
x x x x x x x x x x x x x x x x
day.
x
• A. Discrete
x
• B. Continuous
x
xAnswer: A x
Rationale: The number of babies born is discrete because it represents countable whole numbers.
x x x x x x x x x x x x x
Page | 2
x x
, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
x x x x x x x x x x x x x x x
• A. Discrete
x
• B. Continuous
x
xAnswer: B x
Rationale: Weight is continuous data because it can take any value within a range.
x x x x x x x x x x x x x
9. A nurse collects data on the number of days patients spend in the hospital. What level of measurement
x x x x x x x x x x x x x x x x x
is this?
x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratiox
xAnswer: D x
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between
x x x x x x x x x x x x x x x x x
values.
x
10. A researcher categorizes patients by blood type. What level of measurement is this?
x x x x x x x x x x x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratiox
xAnswer: A x
Rationale: Blood type is nominal data because it represents categories without a meaningful order.
x x x x x x x x x x x x x
11. In a study, the ages of participants are recorded. What type of variable is age?
x x x x x x x x x x x x x x
• A. Nominal
x
• B. Ordinal
x
Page | 3
x x
Edition Graded A+ 2026
NursePrepHub stuvia
, Chapter 1: Introduction to Statistics
x x x x
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all
x x x x x x x x x x x x x x x x
newborns in a hospital over a month is 7.5 pounds.
x x x x x x x x x x
• A. Statistic
x
• B. Parameter
x
xAnswer: B x
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
x x x x x x x x x x x x x x x x
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found that
x x x x x x x x x x x x x x x x x
60% were satisfied with their healthcare.
x x x x x x
• A. Statistic
x
• B. Parameter
x
xAnswer: A x
Rationale: The value is based on a sample, making it a statistic.
x x x x x x x x x x x
3. Which of the following represents a population?
x x x x x x
• A. A sample of 200 patients from a hospital
x x x x x x x x
• B. All patients admitted to a hospital in 2023
x x x x x x x x
• C. A group of patients selected for a study
x x x x x x x x
• D. 50 diabetic patients from a clinic
x x x x x x
xAnswer: B x
Rationale: A population includes all members of a group, while a sample is a subset of the population.
x x x x x x x x x x x x x x x x x
4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
x x x x x x x x x x x x x x x x x x x x
• A. Discrete
x
• B. Continuous
x
• C. Nominal
x
Page | 1 x x
,• D. Ordinal
x
xAnswer: A x
Rationale: The number of visits is discrete data because it represents countable whole numbers.
x x x x x x x x x x x x x
5. A researcher measures the height of patients in a clinic. What level of measurement is height?
x x x x x x x x x x x x x x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratio
x
xAnswer: D x
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences
x x x x x x x x x x x x x x x x
between values.
x x
6. Which type of data is temperature in Celsius?
x x x x x x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratio
x
xAnswer: C x
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between
x x x x x x x x x x x x x x x x
values are meaningful.
x x x
7. Determine whether the data is discrete or continuous: The number of babies born in a hospital each
x x x x x x x x x x x x x x x x
day.
x
• A. Discrete
x
• B. Continuous
x
xAnswer: A x
Rationale: The number of babies born is discrete because it represents countable whole numbers.
x x x x x x x x x x x x x
Page | 2
x x
, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
x x x x x x x x x x x x x x x
• A. Discrete
x
• B. Continuous
x
xAnswer: B x
Rationale: Weight is continuous data because it can take any value within a range.
x x x x x x x x x x x x x
9. A nurse collects data on the number of days patients spend in the hospital. What level of measurement
x x x x x x x x x x x x x x x x x
is this?
x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratiox
xAnswer: D x
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between
x x x x x x x x x x x x x x x x x
values.
x
10. A researcher categorizes patients by blood type. What level of measurement is this?
x x x x x x x x x x x x
• A. Nominal
x
• B. Ordinal
x
• C. Interval
x
• D. Ratiox
xAnswer: A x
Rationale: Blood type is nominal data because it represents categories without a meaningful order.
x x x x x x x x x x x x x
11. In a study, the ages of participants are recorded. What type of variable is age?
x x x x x x x x x x x x x x
• A. Nominal
x
• B. Ordinal
x
Page | 3
x x
