Health Sciences 2nd Edition by Marc Triola, Mario
Triola & Jason Roy
All Chapters Included 1-14| Expert Approved Q&As with
Rationales for Exam Preparations| A+ GRADE
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, Chapter 1: Introduction to Statistics
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all
newborns in a hospital over a month is 7.5 pounds.
• A. Statistic
• B. Parameter
Answer: B
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found that
60% were satisfied with their healthcare.
• A. Statistic
• B. Parameter
Answer: A
Rationale: The value is based on a sample, making it a statistic.
3. Which of the following represents a population?
• A. A sample of 200 patients from a hospital
• B. All patients admitted to a hospital in 2023
• C. A group of patients selected for a study
• D. 50 diabetic patients from a clinic
Answer: B
Rationale: A population includes all members of a group, while a sample is a subset of the population.
4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
• A. Discrete
• B. Continuous
• C. Nominal
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,• D. Ordinal
hg
Answer: A
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Rationale: The number of visits is discrete data because it represents countable whole numbers.
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5. A researcher measures the height of patients in a clinic. What level of measurement is height?
hg hg hg hg hg hg hg hg hg hg hg hg hg hg hg
• A. Nominal
hg
• B. Ordinal
hg
• C. Interval
hg
• D. Ratio
hg
Answer: D
hg hg
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences betw
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een values.
hg
6. Which type of data is temperature in Celsius?
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• A. Nominal
hg
• B. Ordinal
hg
• C. Interval
hg
• D. Ratio
hg
Answer: C
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Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between valu
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es are meaningful.
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7. Determine whether the data is discrete or continuous: The number of babies born in a hospital each
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day.
hg
• A. Discrete
hg
• B. Continuous
hg
Answer: A
hg hg
Rationale: The number of babies born is discrete because it represents countable whole numbers.
hg hg hg hg hg hg hg hg hg hg hg hg hg
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, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
hg hg hg hg hg hg hg hg hg hg hg hg hg hg hg
• A. Discrete
hg
• B. Continuous
hg
Answer: B
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Rationale: Weight is continuous data because it can take any value within a range.
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9. A nurse collects data on the number of days patients spend in the hospital. What level of measurement
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is this?
hg hg
• A. Nominalhg
• B. Ordinal
hg
• C. Interval
hg
• D. Ratio hg
Answer: D
hg hg
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between val
hg hg hg hg hg hg hg hg hg hg hg hg hg hg hg hg hg hg
ues.
10. A researcher categorizes patients by blood type. What level of measurement is this?
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• A. Nominalhg
• B. Ordinal
hg
• C. Interval
hg
• D. Ratio hg
Answer: A
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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?
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• A. Nominalhg
• B. Ordinal
hg
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