(I a Frequency Distribution Is Grouping of Data into Classes

question 18

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:

Development

Development refers to the process of growth and differentiation that organisms undergo from conception to maturity, encompassing both physical and psychological changes.

Operator

Part of an operon; a DNA binding site for a repressor.

Prokaryotic DNA

The genetic material found in prokaryotes (bacteria and archaea) that is typically circular and located in the cytoplasm.

Silencer

A regulatory DNA sequence that can bind repressor proteins to inhibit the expression of a gene.