Home › CBSE Class 11 (Arts) › Economics › Collection, Organisation and Presentation of Data › Why are sample surveys preferred to a census?
Why are sample surveys preferred to a census?
AThey always have no error
BThey are cheaper and faster
CThey cover every single unit
DThey need more enumerators
Answer & Solution
Correct answer: B. They are cheaper and faster
Smaller samples are cheaper and quicker, allow intensive enquiry and need fewer enumerators to train and supervise.
Related questions
In a component bar chart drawn for per cent data, what is the height of the whole bar?A time series line chart mainly helps in understanding what?A time series chart that has time on the x-axis and the variable on the y-axis is called wThe point where the 'less than' and 'more than' ogives intersect gives which measure?How many ogives can be drawn for any grouped frequency distribution?Another name for an ogive is what?A smooth freehand curve passing as closely as possible through the points of a frequency pA frequency polygon joins which points of a histogram?