MEDIUM
11th CBSE
IMPORTANT
Earn 100

Give two examples each of sample, population, and variable.

Important Questions on Collection of Data

MEDIUM
11th CBSE
IMPORTANT
Statistics for Economics>Chapter 2 - Collection of Data>Q 25
Which of the following methods give better results and why?
  • Census
  • Sample
MEDIUM
11th CBSE
IMPORTANT
Statistics for Economics>Chapter 2 - Collection of Data>Q 26

Which of the following errors is more serious and why?

(I) Sampling error

(ii) Non- Sampling error

HARD
11th CBSE
IMPORTANT
Statistics for Economics>Chapter 2 - Collection of Data>Q 27
Suppose there are 10 students in a class. You want to select three out of them. How many samples are possible?
HARD
11th CBSE
IMPORTANT
Statistics for Economics>Chapter 2 - Collection of Data>Q 28
Discuss how you would use the lottery method to select 3 students out of 10 in your class.
HARD
11th CBSE
IMPORTANT
Statistics for Economics>Chapter 2 - Collection of Data>Q 29
Does the lottery method always give a random sample? Explain.
HARD
11th CBSE
IMPORTANT
Statistics for Economics>Chapter 2 - Collection of Data>Q 30
Explain the procedure for selecting a random sample of 3 students out of 10 in your class by using random number tables.
HARD
11th CBSE
IMPORTANT
Statistics for Economics>Chapter 2 - Collection of Data>Q 31
Do samples provide better results than surveys? Give reasons for your answer