The Nyquist criterion states that the sampling frequency of a band limited analog waveform must be at least ______ component to properly reconstruct the signal.

Assertion (A): Nyquist rate of sampling is the theoretical minimum sampling rate at which the signal can be sampled and still be reconstructed from its samples. Reason (R): When the Nyquist rate sampling is used, only an ideal low pass filter can be used to extract signal x(t) from sampled signal xs(t). Code:

A

Both (A) and (R) are true and (R) is the correct explanation of (A).

B

Both (A) and (R) are true, but (R) is not the correct explanation of (A)

C

(A) is true, but (R) is false.

D

(A) false, but (R) is true

From the list given below, identify those which are called ‘Non-Probability Sampling’ procedures: (i) Simple random sampling (ii) Dimensional sampling (iii) Snowball sampling (iv) Cluster sampling (v) Quota sampling (vi) Stratified sampling Choose the correct option:

A

(i), (ii) and (iii)

B

(ii), (iv) and (v)

C

(i), (iii) and (iv)

D

(ii), (iii) and (v)

Which of the two statements from the following statements are correct? (A) Sampling - related error is subsumed under the category non-sampling error. (B) Sampling error doesn't occur in multi-stage cluster sampling. (C) Inaccurate sampling frame and non-response are examples of sampling related error. (D) There is an inverse relation between heterogeneity of population and sampling error. Choose the correct option:

A

(A) and (C) only

B

(A) and (D) only

C

(B) and (D) only

D

(B) and (C) only

From the following, identify those which are called non-probability sampling procedures: a) Systematic sampling b) Quota sampling c) Stratified sampling d) Purposive sampling e) Snowball sampling Choose the correct answer from the options given below:

A

a, b and c only

B

b, c and d only

C

b, d and e only

D

c, d and e only

Which of the following are non-probability sampling methods? (A) Cluster sampling (B) Judgemental sampling (C) Systematic sampling (D) Snowball sampling (E) Quota sampling Choose the correct answer from the options given below :

A

(A), (B) and (C) only

B

(B), (D) and (E) only

C

(B), (C) and (D) only

D

(C), (D) and (E) only

Which of the following sampling methods in research are non - probability based? A. Cluster sampling method B. Dimensional sampling method C. Random sampling method D. Judgement sampling method E. Snowball sampling method Choose the correct answer from the options given below:

A

B, C and D only

B

A, B and C only

C

B, D and E only

D

C, D and E only

Which of the following sampling methods are probability based? a) Cluster sampling b) Quota sampling c) Systematic sampling d) Dimensional sampling e) Stratified sampling Choose the most appropriate answer from the options given below:

A

b, c and d only

B

a, c and e only

C

a, d and e only

D

c, d and e only

Identify sampling procedures in which units are chosen giving an equal and independent chance A. Quota sampling procedure B. Stratified sampling procedure C. Dimensional sampling procedure D. Random sampling procedure E. Systematic sampling procedure Choose the correct answer from the options given below:

A

A, B and C only

B

B, C and D only

C

C, D and E only

D

B, D and E only

Match the items in List - I (Techniques of sampling) with that of List - II (characteristics of procedure). Choose appropriate code for your answer : Set - I (Techniques of sampling) Set – II (Characteristics of procedure) (a) Purposive sampling (i) Dividing the population into subgroups and taking one or more groups at random (b) Multistage sampling (ii) Researcher relies on his or her own judgment when choosing members from the population (c) Systematic sampling (iii) Obtaining K ‘interval’ through N/n and using it for constituting the sample (d) Stratified sampling (iv) Researcher divides the entire population into homogeneous subgroups and randomly selects the final sample

A

(a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)

B

(a) - (ii), (b) - (i), (c) - (iii), (d) - (iv)

C

(a) - (iv), (b) - (ii), (c) - (i), (d) - (iii)

D

(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

In quantitative research paradigm which of the following sampling methods are given preference? A. Simple random sampling B. Stratified sampling C. Quota sampling D. Snowball sampling E. Systematic sampling Choose the correct answer from the options given below

A

A, B and C only

B

A, B and E only

C

B, C and D only

D

C, D and E only

The Nyquist criterion states that the sampling frequency of a band limited analog waveform must be at least ______ component to properly reconstruct the signal.

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