- CFA Exams
- 2021 CFA Level I Exam
- Study Session 2. Quantitative Methods (1)
- Reading 7. Statistical Concepts and Market Returns
- Subject 1. The Nature of Statistics

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**CFA Practice Question**

The ages of all college students in Alabama are a ______.

B. sample

C. statistic

A. population

B. sample

C. statistic

Correct Answer: A

This collection of numbers would be a population.

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**User Contributed Comments**
10

User |
Comment |
---|---|

bobbi |
all means populatiom |

limpus |
I disagree, "all college students in Alabama" is the population. Their age is a parameter, is it not? |

sumeet1982 |
not sure. even my first reaction was "population" but i tend to agree with limpus. so is it population or statistic? more opinions please. |

Carter |
Population. Consider what we are measuring. We want to measure the age not the students. We're talking about data collection here. What is our data? Ages. A parameter of the population would be oldest, for example, or youngest. It is a characteristic that we could measure if we could include all the ages of all college students in Alabama. If it were a statistic, we would not be using the ages of all the students but instead, say, 5,000 students that attend college in Alabama. |

chuong |
We have both sides: A) students is population and age is statistics (exampe in sample of 100 randomly selected student, we have 10% of them have are over than 30 year old). B) age is population and student is statistics (example select the age of 20 from the rages of ages (0-100 years old) we have 48% is boy and 52% is girl). |

soarer1 |
"All" = Population |

gulfa99 |
Agree with limpus. |

2014 |
Sample and statistics u can never collect of all students; so answer is straight |

johntan1979 |
My first reaction is parameter. Things like age, weight, height are definitely parameters or statistics. But considering the options available, the most viable answer is A, because B and C are worse choices. |

Amrokken |
key word ageS ...plural |