A continuous time function x(t) is periodic with period T. The function is sampled uniformly with a sampling period T<sub>s</sub>. In which one of the following cases is the sampled signal periodic?

A continuous-time function x(t) is periodic with period T. The function is sampled uniformly with a sampling period ??. In which one of the following cases is the sampled signal periodic?

A

\({\rm{T\;}} = {\rm{\;}}\sqrt 2 {\rm{\;Ts}}\)

B

𝑇 = 1.2 𝑇𝑠

C

Always

D

Never

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

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 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 one of the following is the correct sequence of various stages of operating cycle of a manufacturing company? 1. Raw material conversion period, work-in-progress conversion period, Finished goods conversion period, Receivables conversion period 2. Raw material conversion period, work-in-progress conversion period, Creditors payment period, Receivables conversion period 3. Creditor payment period. Raw material conversion period, Receivables conversion period, work-in- progress conversion period 4. Raw material conversion period, Finished goods conversion period, work-in- progress conversion period. Receivables conversion period

A

1

B

2

C

3

D

4

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)

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

A continuous time function x(t) is periodic with period T. The function is sampled uniformly with a sampling period T_s. In which one of the following cases is the sampled signal periodic?

Related Questions

A continuous time function x(t) is periodic with period T. The function is sampled uniformly with a sampling period Ts. In which one of the following cases is the sampled signal periodic?

Related Questions

A continuous time function x(t) is periodic with period T. The function is sampled uniformly with a sampling period T_s. In which one of the following cases is the sampled signal periodic?