CA Foundation P3 · Chapter 13 · Question 5 of 9
The frequencies of five consecutive classes are 5, 8, 12, 15 and 10. The 'less than' cumulative frequency of the third class is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: D) 25
Explanation
The less-than cumulative frequency adds frequencies up to and including the class: 5 + 8 + 12 = 25. 12 is only the frequency of the third class.
More Statistical Description of Data and Sampling MCQs
- Q7A sampling method in which the population is divided into homogeneous sub-groups and a random sample is drawn from each sub-group is called:
- Q8A population has a standard deviation of 12. The standard error of the sample mean for a random sample of size 36 (drawn with replacement)…
- Q9A systematic sample of 30 units is drawn from a numbered population of 600 units. If the first unit selected is number 7, the 12th unit…
- Q1Data collected by an investigator directly from the source for a specific purpose are called:
- Q2In a frequency distribution with inclusive classes 10–19, 20–29, 30–39, the class boundaries of the class 20–29 are: