- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 2. Organizing, Visualizing, and Describing Data
- Subject 3. Summarizing Data Using Frequency Distributions
CFA Practice Question
For the grouped frequency distribution shown below, the class width is ______.
B. 5
C. 6
A. 18
B. 5
C. 6
Correct Answer: C
The class width is the distance from the lower class limit to the lower class limit. Here, the class width is 28 - 22 = 6.
User Contributed Comments 12
| User | Comment |
|---|---|
| chbourke | Sorry. It is 5. Because is the clas width is the distance from the lower class limit to HIGH class limit. Here, the class width is 27 - 22 = 5 or 28 - 33 = 5 |
| Rotigga | No, 6 is correct. Just count: 22, 23, 24, 25, 26, 27-- that's six numbers. |
| gaur | it is 6. Remember frequency should be non-exclusive and non-overlapping. |
| Sumit14 | both the boundary values should be taken into account while counting |
| Ioannis | The number of natural numbers between N and M where M>N is M-N+1 so 27-22+1=6 |
| JKiro | "interval" must be all-inclusive & non-overlapping |
| duongth307 | Class width = (Highest - Lowest) / No. of class = (57 - 22)/6 = 5.833 or 6 (as the nearest) |
| DutchNadja | page 245 of the bible |
| ciji | is this class war going on ? |
| Saxonomy | **Throws pie in ciji's face** |
| Shaan23 | Duongth....you're kind of correct....you have to use the Class Bounderies and NOT the class limits...you guys should see a question on class bounderies if you havent yet... (57.5 - 21.5) / 6 = 6 |
| Sm7272 | Page 375 of the Bible : Interval width = Range / no. Of intervals , rounded up. (57-22)/6 = 35/6 which shall be rounded up. |