Download App

Collection of Data — Economics STD 11 Commerce — Question

CBSE BoardEnglish MediumSTD 11 CommerceEconomicsCollection of Data3 Marks
Question
Distinguish between random sampling and non-random sampling.
Or
What do you know about random sampling and non random sampling?
 
✓

Answer

Random sampling is a technique of drawing a sample from the population in which each and every unit of the population has an equal chance of being selected in the sample.
Whereas in a non-random sampling method, all the units of the population do not have an equal chance of being selected and convenience or judgement of the investigator plays an important role in the selection of the sample. They are mainly selected on the basis of judgement, purpose, convenience or quota.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Collection of Data→Collection of Data — all question types→Economics STD 11 Commerce question papers→CBSE Board STD 11 Commerce question papers→CBSE Board question paper generator→

Similar questions

Distinguish between individual demand and market demand.
→
Complete the following table:
Output (Units)Average Revenue (₹)Total Revenue (₹)Marginal Revenue (₹)
120--
2-36-
3--9
41352-
5---2
→
Draw a histogram and frequency polygon from the following data:
Marks
0-5
5-10
10-15
15-20
20-25
25-30
30-35
35-40
40-45
45-50
No. of Students
3
7
13
25
40
14
10
7
4
2
→
A producer supplies $80$ units of a good at a price of $₹ 10$ per unit. Price elasticity of supply is $4.$ How much will he supply at $₹ 9 $ per unit?
→
Explain the two methods of drawing a random sample.
→
Compute coefficient of correlation from the following data:
 
X-seires
Y-series
Mean
15
28
Sum of Squares of deviations from mean
144
225
Sum of products of deviations of X and Y series from their respective mean is 20. Number of pairs of observations is 10.
→
Define price index number. How are these different from quantity index number?
→
Discuss importance and utility of correlation.
→
Price elasticity of demand of a good is $(-) 1$. Calculate the percentage change in price that will raise the demand from $20$ units to $30$ units.
→
Complete the following table:
Output (Units)Average Revenue (₹)Marginal Revenue (₹)Total Revenue (₹)
1-15-
2--26
311--
4-3-
→