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, Chapter 1: Introduction to Statistics st st st st
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all ne
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wborns in a hospital over a month is 7.5 pounds.
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• A. Statistic st
• B. Parameter st st
Answer: B st
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
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2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found that 60
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% were satisfied with their healthcare.
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• A. Statistic st
• B. Parameter st st
Answer: A st
Rationale: The value is based on a sample, making it a statistic.
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3. Which of the following represents a population?
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• A. A sample of 200 patients from a hospital
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• B. All patients admitted to a hospital in 2023
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• C. A group of patients selected for a study
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• D. 50 diabetic patients from a clinic
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Answer: B st
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. Discrete st
• B. Continuous st
• C. Nominal st
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,• D. Ordinal st st
Answer: A st
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?
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• A. Nominal st
• B. Ordinal st
• C. Intervalst
• D. Ratio st st
Answer: D st
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences between
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values.
t
6. Which type of data is temperature in Celsius?
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• A. Nominal st
• B. Ordinal st
• C. Intervalst
• D. Ratio st st
Answer: C st
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between values a
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re meaningful.
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7. Determine whether the data is discrete or continuous: The number of babies born in a hospital each da
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y.
• A. Discretest
• B. Continuous
st st
Answer: A st
Rationale: The number of babies born is discrete because it represents countable whole numbers.
st st st st st st st st st st st st st
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, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
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• A. Discrete
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• B. Continuous
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Answer: B st
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 is t
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his?
• A. Nominalst
• B. Ordinal
st
• C. Interval
st
• D. Ratio st st
Answer: D st
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between values.
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10. A researcher categorizes patients by blood type. What level of measurement is this?
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• A. Nominalst
• B. Ordinal
st
• C. Interval
st
• D. Ratio st st
Answer: A st
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?
st st st st st st st st st st st st st st
• A. Nominalst
• B. Ordinal
st
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, Chapter 1: Introduction to Statistics st st st st
1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all ne
st st st st st st st st st st st st st st st st st
wborns in a hospital over a month is 7.5 pounds.
st st st st st st st st st
• A. Statistic st
• B. Parameter st st
Answer: B st
Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
st st st st st st st st st st st st st st st st
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found that 60
st st st st st st st st st st st st st st st st st st
% were satisfied with their healthcare.
st st st st st
• A. Statistic st
• B. Parameter st st
Answer: A st
Rationale: The value is based on a sample, making it a statistic.
st st st st st st st st st st st
3. Which of the following represents a population?
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• A. A sample of 200 patients from a hospital
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• B. All patients admitted to a hospital in 2023
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• C. A group of patients selected for a study
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• D. 50 diabetic patients from a clinic
st st st st st st st
Answer: B st
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?
st st st st st st st st st st st st st st st st st st st st
• A. Discrete st
• B. Continuous st
• C. Nominal st
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,• D. Ordinal st st
Answer: A st
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?
st st st st st st st st st st st st st st st
• A. Nominal st
• B. Ordinal st
• C. Intervalst
• D. Ratio st st
Answer: D st
Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences between
st st st st st st st st st st st st st st st st st s
values.
t
6. Which type of data is temperature in Celsius?
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• A. Nominal st
• B. Ordinal st
• C. Intervalst
• D. Ratio st st
Answer: C st
Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between values a
st st st st st st st st st st st st st st st st st st
re meaningful.
st
7. Determine whether the data is discrete or continuous: The number of babies born in a hospital each da
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y.
• A. Discretest
• B. Continuous
st st
Answer: A st
Rationale: The number of babies born is discrete because it represents countable whole numbers.
st st st st st st st st st st st st st
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, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
st st st st st st st st st st st st st st st
• A. Discrete
st
• B. Continuous
st st
Answer: B st
Rationale: Weight is continuous data because it can take any value within a range.
st st st st st st st st st st st st st
9. A nurse collects data on the number of days patients spend in the hospital. What level of measurement is t
st st st st st st st st st st st st st st st st st st st
his?
• A. Nominalst
• B. Ordinal
st
• C. Interval
st
• D. Ratio st st
Answer: D st
Rationale: The number of days is ratio data because it has a true zero and meaningful differences between values.
st st st st st st st st st st st st st st st st st st
10. A researcher categorizes patients by blood type. What level of measurement is this?
st st st st st st st st st st st st
• A. Nominalst
• B. Ordinal
st
• C. Interval
st
• D. Ratio st st
Answer: A st
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?
st st st st st st st st st st st st st st
• A. Nominalst
• B. Ordinal
st
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