(I a Frequency Distribution Is Grouping of Data into Classes

question 27

Multiple Choice

(i. A frequency distribution is grouping of data into classes showing the number of observations in
Each class.
(ii. The midpoint of a class, which is also called a class mark, is halfway between the lower and
Upper limits.
(iii) A class interval, which is the width of a class, can be determined by subtracting the lower limit of
A class from the lower limit of the next higher class.

• 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).

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Definitions:

Thyroid Gland

An endocrine gland that lies anterior to the trachea and releases hormones that regulate the rate of metabolism.

TSH

Thyroid-stimulating hormone, a pituitary hormone that stimulates the thyroid gland to produce thyroid hormones.

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A chemical element crucial for bone health, muscle function, and many cellular processes.