Page | 1
vj vj
, Chapter 1: Introduction to Statistics vj vj vj vj
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all n
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
ewborns in a hospital over a month is 7.5 pounds.
vj vj vj vj vj vj vj vj vj
• A. Statistic
vj
• B. Parameter
vj v
j Answer: B vj
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found that 6
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0% were satisfied with their healthcare.
vj vj vj vj vj
• A. Statistic
vj
• B. Parameter
vj v
j Answer: A vj
Rationale: The value is based on a sample, making it a statistic.
vj vj vj vj vj vj vj vj vj vj vj
3. Which of the following represents a population?
vj vj vj vj vj vj
• A. A sample of 200 patients from a hospital
vj vj vj vj vj vj vj vj
• B. All patients admitted to a hospital in 2023
vj vj vj vj vj vj vj vj
• C. A group of patients selected for a study
vj vj vj vj vj vj vj vj
• D. 50 diabetic patients from a clinic
vj vj vj vj vj vj vj
Answer: B vj
Rationale: A population includes all members of a group, while a sample is a subset of the population.
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4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
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• A. Discretevj
• B. Continuous
vj
• C. Nominal vj
Page | 2 vj vj
,• D. Ordinal
vj v
j Answer: A vj
Rationale: The number of visits is discrete data because it represents countable whole numbers.
vj vj vj vj vj vj vj vj vj vj vj vj vj
5. A researcher measures the height of patients in a clinic. What level of measurement is height?
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• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: D vj
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences betwee
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
n values.
vj
6. Which type of data is temperature in Celsius?
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• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: C vj
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between values
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
are meaningful.
vj
7. Determine whether the data is discrete or continuous: The number of babies born in a hospital each d
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
ay.
• A. Discrete
vj
• B. Continuous
vj v
j Answer: A vj
Rationale: The number of babies born is discrete because it represents countable whole numbers.
vj vj vj vj vj vj vj vj vj vj vj vj vj
Page | 3 vj vj
, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
• A. Discrete
vj
• B. Continuous
vj v
j Answer: B vj
Rationale: Weight is continuous data because it can take any value within a range.
vj vj vj vj vj vj vj vj vj vj vj vj vj
9. A nurse collects data on the number of days patients spend in the hospital. What level of measurement is
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this?
j
• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: D vj
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between values
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
.
10. A researcher categorizes patients by blood type. What level of measurement is this?
vj vj vj vj vj vj vj vj vj vj vj vj
• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: A vj
Rationale: Blood type is nominal data because it represents categories without a meaningful order.
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11. In a study, the ages of participants are recorded. What type of variable is age?
vj vj vj vj vj vj vj vj vj vj vj vj vj vj
• A. Nominal
vj
• B. Ordinal
vj
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vj vj
vj vj
, Chapter 1: Introduction to Statistics vj vj vj vj
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all n
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
ewborns in a hospital over a month is 7.5 pounds.
vj vj vj vj vj vj vj vj vj
• A. Statistic
vj
• B. Parameter
vj v
j Answer: B vj
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found that 6
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
0% were satisfied with their healthcare.
vj vj vj vj vj
• A. Statistic
vj
• B. Parameter
vj v
j Answer: A vj
Rationale: The value is based on a sample, making it a statistic.
vj vj vj vj vj vj vj vj vj vj vj
3. Which of the following represents a population?
vj vj vj vj vj vj
• A. A sample of 200 patients from a hospital
vj vj vj vj vj vj vj vj
• B. All patients admitted to a hospital in 2023
vj vj vj vj vj vj vj vj
• C. A group of patients selected for a study
vj vj vj vj vj vj vj vj
• D. 50 diabetic patients from a clinic
vj vj vj vj vj vj vj
Answer: B vj
Rationale: A population includes all members of a group, while a sample is a subset of the population.
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
• A. Discretevj
• B. Continuous
vj
• C. Nominal vj
Page | 2 vj vj
,• D. Ordinal
vj v
j Answer: A vj
Rationale: The number of visits is discrete data because it represents countable whole numbers.
vj vj vj vj vj vj vj vj vj vj vj vj vj
5. A researcher measures the height of patients in a clinic. What level of measurement is height?
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: D vj
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences betwee
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
n values.
vj
6. Which type of data is temperature in Celsius?
vj vj vj vj vj vj vj
• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: C vj
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between values
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
are meaningful.
vj
7. Determine whether the data is discrete or continuous: The number of babies born in a hospital each d
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
ay.
• A. Discrete
vj
• B. Continuous
vj v
j Answer: A vj
Rationale: The number of babies born is discrete because it represents countable whole numbers.
vj vj vj vj vj vj vj vj vj vj vj vj vj
Page | 3 vj vj
, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
• A. Discrete
vj
• B. Continuous
vj v
j Answer: B vj
Rationale: Weight is continuous data because it can take any value within a range.
vj vj vj vj vj vj vj vj vj vj vj vj vj
9. A nurse collects data on the number of days patients spend in the hospital. What level of measurement is
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj v
this?
j
• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: D vj
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between values
vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj vj
.
10. A researcher categorizes patients by blood type. What level of measurement is this?
vj vj vj vj vj vj vj vj vj vj vj vj
• A. Nominal
vj
• B. Ordinal
vj
• C. Interval
vj
• D. Ratio
vj v
j Answer: A vj
Rationale: Blood type is nominal data because it represents categories without a meaningful order.
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11. In a study, the ages of participants are recorded. What type of variable is age?
vj vj vj vj vj vj vj vj vj vj vj vj vj vj
• A. Nominal
vj
• B. Ordinal
vj
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vj vj
