I the Strength of the Correlation Between Two Variables Depends

question 123

Multiple Choice

i. The strength of the correlation between two variables depends on the sign of the coefficient of
Correlation.
ii. A coefficient of correlation r close to 0 (say, 0.08) shows that the relationship between two
Variables is quite weak.
iii. Coefficients of -0.91 and +0.91 have equal strength.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

---

Definitions:

CEA

An abbreviation for Carcinoembryonic Antigen, a protein normally present at very low levels in the blood but which can be elevated in certain types of cancer.

NHL

Stands for Non-Hodgkin Lymphoma, a type of cancer that affects the lymphatic system.

Malignant Cancer

A type of cancer that is invasive and can spread to other parts of the body (metastasize).

Neoplasms

Abnormal growths of tissue, which can be benign or malignant (cancerous), arising from the uncontrolled proliferation of cells.