For a class interval of 10 to 19 measured to the nearest whole unit, the continuous class boundaries are:
Correct answer: B. 9.5 and 19.5
- A. 9.0 and 19.0
- B. 9.5 and 19.5
- C. 10.0 and 20.0
- D. 10.5 and 19.5
Explanation
When observations are rounded to the nearest whole unit, 0.5 is added and subtracted to form continuous boundaries. Thus, 10 to 19 becomes 9.5 to 19.5.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Data Collection and Presentation
Data collection covers primary and secondary sources, qualitative and quantitative data, discrete and continuous variables, sampling methods and questionnaire design. Presentation includes frequency tables, grouped data, bar charts, histograms, pie charts, line graphs and cumulative frequency curves, with care over class intervals and misleading scales.
Practise Data Collection and Presentation
30 free Data Collection and Presentation MCQs from Quantitative Methods, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Quantitative Methods questions like this
Quantitative Methods is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Data Collection and Presentation questions
Which display allows individual observations to remain visible while also showing their distribution?
If a category has frequency 18 in a total of 120 observations, its relative frequency is:
A table that presents data using two characteristics at the same time is called a:
Which data collection method involves recording behaviour as it occurs without asking the participants questions?
A trial survey conducted on a small group before the main survey is called a:
Which type of question allows respondents to answer in their own words?