- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 4. Common Probability Distributions
- Subject 2. Probability Function
CFA Practice Question
The random variable, x, is uniformly distributed over the range of 0 to +10. The probability of observing a value of x=4 is closest to ______.
B. 10%
C. 40%
A. 0%
B. 10%
C. 40%
Correct Answer: A
The probability of observing a specific value for a continuous random variable is zero.
User Contributed Comments 12
| User | Comment |
|---|---|
| katybo | tricky question. |
| danlan | Uniformly distributed means continuously |
| surob | Yeah, tricky one. |
| gaur | good que...no way I will get this if this shows up in the exam |
| MattyBo | Really tricky. Bonus if I get it right on exam. |
| Shammel | Thanks for clearing this up Danlan. Uniformly distributed = continuous. |
| JakeZ | If I guessed I might have got it... Sometimes its better to just guess if you dont have time to think carefuly lol |
| azramirza | No Danlan...Uniformly distributed can also be discreet..the fact that a range is given makes it continous. |
| endurance | because a continuous uniform distribution takes an infinite numbers of outcomes (i.e under each interval) the probability is zero. |
| johntan1979 | Range = infinity outcomes Any one value, x has 0% probability because x/all outcomes. |
| Akiva | azamirza, +1 So, answer A is correct only for continuous distribution, while answer B - for discrete. Proofs see on wiki Uniform distrbution (discrete and continuous) |
| MathLoser | I blame myself for not reading the study notes carefully. |