Mention the correct answers:
The ranks according to two attributes in a sample are given below:

R1	1	2	3	4	5
R2	5	4	3	2	1

The rank correlation between them is

A. The central limit theorem B. The law of statistical regularly C. The law of inertia of large numbers D. None of the above

A. Sampling error B. Measurement error C. Coverage error D. Non-response error

A. Both (A) and (R) are true B. (A) is true, but (R) is false C. (A) is false, but (R) is true D. Both (A) and (R) are false

A. 0 B. 1 C. 0.4 D. 0.8