Collection of data Statistics - Collection of data

• A
  There should be large number of questions,
• B
  Answers to the questions should require calculations
• C
  Questions regarding personal life should be included
• ✓
  There should be simple and short questions.

Answer: D.

• A
  Inquiry by telephone
• ✓
  Indirect inquiry
• C
  Inquiry by newspapers
• D
  Inquiry by post

Answer: B.

• ✓
  Direct inquiry
• B
  Indirect inquiry
• C
  Inquiry by telephone
• D
  Inquiry by post

Answer: A.

• A
  Secondary data are collected for the first time.
• B
  Secondary data are more reliable than primary data.
• ✓
  Secondary data are taken from primary data.
• D
  More money, time and energy is required to collect secondary data.

Answer: C.

• A
  It is in the classified form.
• ✓
  Its collection requires more money, time and energy.
• C
  Money, time and energy can be saved in its collection.
• D
  It is less reliable than the secondary data.

Answer: B.