- 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**

A survey asked 2,000 U.S. citizens whether they approved or did not approve of the work accomplished by the President. Seventy-two percent of the sampled citizens approved. What's the sample, and what's the statistic involved in this study?

B. responses of the 2,000 surveyed citizens; 72% of the 2,000 surveyed approve

C. responses of all citizens; 72% of the 2,000 surveyed citizens approve

A. responses of the 2,000 surveyed citizens; responses of all citizens

B. responses of the 2,000 surveyed citizens; 72% of the 2,000 surveyed approve

C. responses of all citizens; 72% of the 2,000 surveyed citizens approve

Correct Answer: B

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**User Contributed Comments**
5

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

Bibhu |
The difference between Q.1 and this one- population vs statistics. |

childpsych1 |
B is right answer becase sample is 2000 citzens selected for the survey out of which 72% responded which is a statistic = meaning = percentage of the sample |

jwebbs |
this one is a toughie |

8thlegend |
Out of 2000 people, 72% would agree that they do not agree with what the president is doing right now. |

2014 |
Sample everybody know; the amount of people surveyed, viewed to represent population. Statistics: Since, statistics means analysis & interpretation. The interpretation is 72% ...... |