Identify the non-probability models from the following:
(a) Simple random sampling
(b) Fixed quantity (quota) sampling
(c) Systematic sampling
(d) Snowball sample
Choose the correct answer from the options given below:
1
Only (B), (C) and (D)
2
Only (C) and (D)
3
Only (A), (B) and (C)
4
Only (B) and (D)