- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 7. Big Data Projects
- Subject 2. Data Preparation and Wrangling
CFA Practice Question
Here is one row of a dataset:
Ms. Smith | M | Jan 1, 1990 | Don't know
II. Invalidity
III. Inconsistency
IV. Inaccuracy
Name | Gender | DoB | Salary
Ms. Smith | M | Jan 1, 1990 | Don't know
The possible data errors are:
I. Incompleteness
II. Invalidity
III. Inconsistency
IV. Inaccuracy
Correct Answer: I and III
Incompleteness error: The salary can be zero or a positive number. Inconsistency error: Ms. Smith cannot be a male.
User Contributed Comments 1
User | Comment |
---|---|
msanderson | Ms. wants to be referred to as male (politically correct) |